送给萌新的话

语法入门

如果你是刚刚开始接触程序设计的萌新，可以跟雨巨刷题录播来提高一下代码量 https://www.nowcoder.com/study/live/528

顺序结构程序设计

https://ac.nowcoder.com/acm/contest/18839?from=acdiscuss

选择结构程序设计

https://ac.nowcoder.com/acm/contest/19304?from=acdiscuss

循环结构程序设计

https://ac.nowcoder.com/acm/contest/19305?from=acdiscuss

数组、字符串及数据批量存储

https://ac.nowcoder.com/acm/contest/19306?from=acdiscuss

函数与递归

https://ac.nowcoder.com/acm/contest/19859?from=acdiscuss

栈、队列和stl

https://ac.nowcoder.com/acm/contest/19850?from=acdiscuss

模拟、枚举与贪心

https://ac.nowcoder.com/acm/contest/19851?from=acdiscuss

语法入门课程 https://www.nowcoder.com/courses/cover/live/678?from=acdiscuss

算法入门

模拟、枚举与贪心

https://ac.nowcoder.com/acm/contest/20960?from=acdiscuss

递归与分治思想

https://ac.nowcoder.com/acm/contest/21763?from=acdiscuss

二分、三分、01分数规划

https://ac.nowcoder.com/acm/contest/22353?from=acdiscuss

堆栈、队列、单调栈、单调队列

https://ac.nowcoder.com/acm/contest/22669?from=acdiscuss

优先队列、并查集

https://ac.nowcoder.com/acm/contest/22904?from=acdiscuss

搜索与搜索剪枝

https://ac.nowcoder.com/acm/contest/23156?from=acdiscuss

动态规划1：线性dp、背包问题，区间

https://ac.nowcoder.com/acm/contest/24213?from=acdiscuss

动态规划2：树形dp、状压dp、

https://ac.nowcoder.com/acm/contest/25022?from=acdiscuss

图论基础、最短路与最小生成树

https://ac.nowcoder.com/acm/contest/26077?from=acdiscuss

简单数学基础

https://ac.nowcoder.com/acm/contest/26656?from=acdiscuss

线段树与树状数组

https://ac.nowcoder.com/acm/contest/26896?from=acdiscuss

RMQ与LCA

https://ac.nowcoder.com/acm/contest/27836?from=acdiscuss

算法入门课程 https://www.nowcoder.com/courses/cover/live/724?from=acdiscuss

算法进阶

https://ac.nowcoder.com/discuss/828697

Q&A

Q：如何刷本题单？

本题单分为语法入门和算法入门两部分。

1、刚学完语法，完全没有接触过算法的同学，建议先从语法入门开始练。

2、已经有过100-200道刷题量的同学，可以直接尝试直接从算法入门开始刷。

3、算法入门部分知识点全部掌握的同学，可以转算法进阶题单进行练习https://ac.nowcoder.com/discuss/828697

Q:刷题需有什么顺序吗？

题单本身就是按难度和知识点排序的，可以按顺序进行。

Q:所有的题目都要刷吗？

不一定，如果你觉得某个专题已经掌握了，可以直接进行下一个专题。

Q：刷题的时候遇到困难怎么办？

题目想了20分钟以上还是没有思路，可以尝试去找一下题解，或者看一下他人提交的代码。学会了思路以后按照自己的理解来写代码解决题目（不要对着其他人的代码来写）。题单中的题目如果在网络上找不到题解，请把题目链接回复在本贴下，我们会对题解进行补充。

Q：刷题之前需要具备什么知识吗？

语法入门部分具备学校学习的语言课程内容就可以了。在刷题的过程中逐渐熟练掌握。算法入门部分需要学会每个专题对应的算法，你可以从网络查找资料，或者跟牛客竞赛的课程进行学习 https://ac.nowcoder.com/acm/course

##题目汇总

顺序结构程序设计

练习题https://ac.nowcoder.com/acm/contest/18839?from=acdiscuss

这是一道签到题 https://ac.nowcoder.com/acm/problem/16570

排列式 https://ac.nowcoder.com/acm/problem/18929

小飞机 https://ac.nowcoder.com/acm/problem/20750

学姐的"Helloworld!" https://ac.nowcoder.com/acm/problem/213204

乘法表 https://ac.nowcoder.com/acm/problem/22206

KiKi学程序设计基础 https://ac.nowcoder.com/acm/problem/201524

疫情死亡率 https://ac.nowcoder.com/acm/problem/214222

爱因斯坦的名言 https://ac.nowcoder.com/acm/problem/214605

字符串输出1.0 https://ac.nowcoder.com/acm/problem/216117

牛牛学说话之-整数 https://ac.nowcoder.com/acm/problem/21985

牛牛学说话之-浮点数 https://ac.nowcoder.com/acm/problem/21986

牛牛学加法 https://ac.nowcoder.com/acm/problem/21987

牛牛学除法 https://ac.nowcoder.com/acm/problem/21988

牛牛学取余 https://ac.nowcoder.com/acm/problem/21989

浮点除法 https://ac.nowcoder.com/acm/problem/21992

计算带余除法 https://ac.nowcoder.com/acm/problem/21453

K蝴蝶 https://ac.nowcoder.com/acm/problem/216116

水题再次来袭：明天星期几？ https://ac.nowcoder.com/acm/problem/21310

开学？ https://ac.nowcoder.com/acm/problem/206668

helloworld https://ac.nowcoder.com/acm/problem/212982

a+b https://ac.nowcoder.com/acm/problem/212983

整数的个位 https://ac.nowcoder.com/acm/problem/21990

整数的十位 https://ac.nowcoder.com/acm/problem/21991

反向输出一个四位数 https://ac.nowcoder.com/acm/problem/21454

总成绩和平均分计算 https://ac.nowcoder.com/acm/problem/21459

计算平均成绩 https://ac.nowcoder.com/acm/problem/21586

牛牛学梯形 https://ac.nowcoder.com/acm/problem/21995

牛牛学矩形 https://ac.nowcoder.com/acm/problem/21998

牛牛学立体 https://ac.nowcoder.com/acm/problem/21999

计算三角形的周长和面积 https://ac.nowcoder.com/acm/problem/21461

你能活多少秒 https://ac.nowcoder.com/acm/problem/21457

时间转换 https://ac.nowcoder.com/acm/problem/21458

温度转换 https://ac.nowcoder.com/acm/problem/22004

计算机内存 https://ac.nowcoder.com/acm/problem/22005

[NOIP2017]成绩 https://ac.nowcoder.com/acm/problem/16421

KiKi的最高分 https://ac.nowcoder.com/acm/problem/201527

组队比赛 https://ac.nowcoder.com/acm/problem/205272

平方根 https://ac.nowcoder.com/acm/problem/22003

长方体 https://ac.nowcoder.com/acm/problem/15869

使徒袭来 https://ac.nowcoder.com/acm/problem/209794

白兔的分身术 https://ac.nowcoder.com/acm/problem/15250

纸牌 https://ac.nowcoder.com/acm/problem/18945

Tobaku Mokushiroku Kaiji https://ac.nowcoder.com/acm/problem/19483

珂朵莉的假动态仙人掌 https://ac.nowcoder.com/acm/problem/14828

旅游观光 https://ac.nowcoder.com/acm/problem/14891

[NOIP2002]自由落体 https://ac.nowcoder.com/acm/problem/16740

挂科 https://ac.nowcoder.com/acm/problem/212995

得不到的爱情 https://ac.nowcoder.com/acm/problem/216071

选择结构程序设计

练习题https://ac.nowcoder.com/acm/contest/19304?from=acdiscuss

比大小 https://ac.nowcoder.com/acm/problem/212955

卡拉兹函数 https://ac.nowcoder.com/acm/problem/205898

默契 https://ac.nowcoder.com/acm/problem/215089

整除判断 https://ac.nowcoder.com/acm/problem/214223

CSimplemathproblem https://ac.nowcoder.com/acm/problem/213397

吃瓜群众 https://ac.nowcoder.com/acm/problem/22014

jyq跳格子 https://ac.nowcoder.com/acm/problem/215109

小名的回答 https://ac.nowcoder.com/acm/problem/16128

牛妹数 https://ac.nowcoder.com/acm/problem/22010

判断闰年 https://ac.nowcoder.com/acm/problem/22012

统计数据正负个数 https://ac.nowcoder.com/acm/problem/25316

小乐乐是否被叫家长 https://ac.nowcoder.com/acm/problem/54539

最大最小值 https://ac.nowcoder.com/acm/problem/22015

送分题 https://ac.nowcoder.com/acm/problem/17194

四季 https://ac.nowcoder.com/acm/problem/214428

B是不是太迟了 https://ac.nowcoder.com/acm/problem/213396

前天是哪天 https://ac.nowcoder.com/acm/problem/214607

L1-2单位换算 https://ac.nowcoder.com/acm/problem/205413

纸牌 https://ac.nowcoder.com/acm/problem/18945

排队领水 https://ac.nowcoder.com/acm/problem/22240

可编程拖拉机比赛 https://ac.nowcoder.com/acm/problem/14597

[NOIP2004]不高兴的津津 https://ac.nowcoder.com/acm/problem/16658

[NOIP2008]ISBN号码 https://ac.nowcoder.com/acm/problem/16617

###循环结构程序设计

练习题https://ac.nowcoder.com/acm/contest/19305?from=acdiscuss

上下金字塔 https://ac.nowcoder.com/acm/problem/22204

数字三角形 https://ac.nowcoder.com/acm/problem/22208

字符金字塔 https://ac.nowcoder.com/acm/problem/22209

涂小天与他的画 https://ac.nowcoder.com/acm/problem/214218

箭形图案 https://ac.nowcoder.com/acm/problem/22056

牛牛学数列 https://ac.nowcoder.com/acm/problem/22156

牛牛学数列2 https://ac.nowcoder.com/acm/problem/22157

牛牛学数列3 https://ac.nowcoder.com/acm/problem/22158

牛牛学数列4 https://ac.nowcoder.com/acm/problem/22159

牛牛学数列5 https://ac.nowcoder.com/acm/problem/22160

牛牛学数列6 https://ac.nowcoder.com/acm/problem/22161

A+B https://ac.nowcoder.com/acm/problem/14748

多组输入a+b https://ac.nowcoder.com/acm/problem/22165

多组输入a+b II https://ac.nowcoder.com/acm/problem/22166

多组数据a+b III https://ac.nowcoder.com/acm/problem/22167

[NOIP2018]标题统计 https://ac.nowcoder.com/acm/problem/21469

栗酱数数 https://ac.nowcoder.com/acm/problem/14673

有趣的二进制 https://ac.nowcoder.com/acm/problem/15942

[NOIP2006]数列 https://ac.nowcoder.com/acm/problem/16668

只能吃土豆的牛牛 https://ac.nowcoder.com/acm/problem/208253

[NOIP2015]金币 https://ac.nowcoder.com/acm/problem/16490

托米历险记 https://ac.nowcoder.com/acm/problem/16607

绩点 https://ac.nowcoder.com/acm/problem/18414

[NOIP2016]买铅笔 https://ac.nowcoder.com/acm/problem/16437

整数个数 https://ac.nowcoder.com/acm/problem/14516

栗酱的文明2 https://ac.nowcoder.com/acm/problem/14669

黑大火与他的猫 https://ac.nowcoder.com/acm/problem/214219

[NOIP2000]进制转换 https://ac.nowcoder.com/acm/problem/16756

素数判断 https://ac.nowcoder.com/acm/problem/22200

Game https://ac.nowcoder.com/acm/problem/201610

[NOIP1999]Cantor表 https://ac.nowcoder.com/acm/problem/16785

最大的差 https://ac.nowcoder.com/acm/problem/204457

成绩统计 https://ac.nowcoder.com/acm/problem/214227

糖果俱乐部 https://ac.nowcoder.com/acm/problem/207595

数字计数 https://ac.nowcoder.com/acm/problem/210751

热杆上的蚂蚁 https://ac.nowcoder.com/acm/problem/205453

焦虑的蚂蚁 https://ac.nowcoder.com/acm/problem/21201

拯救小a https://ac.nowcoder.com/acm/problem/214437

YoungManDon'tSayFive https://ac.nowcoder.com/acm/problem/216200

魔法数字变换 https://ac.nowcoder.com/acm/problem/22163

[NOIP2005]陶陶摘苹果 https://ac.nowcoder.com/acm/problem/16648

[NOIP2004]津津的储蓄计划 https://ac.nowcoder.com/acm/problem/16662

[NOIP2002]级数求和 https://ac.nowcoder.com/acm/problem/16705

cayun日常之赏月 https://ac.nowcoder.com/acm/problem/14610

鹏 https://ac.nowcoder.com/acm/problem/17361

D博弈与核心能源动力 https://ac.nowcoder.com/acm/problem/216024

好数 https://ac.nowcoder.com/acm/problem/213356

3和5和7 https://ac.nowcoder.com/acm/problem/22192

回文对称数 https://ac.nowcoder.com/acm/problem/22169

数位之和 https://ac.nowcoder.com/acm/problem/22199

箱子归位 https://ac.nowcoder.com/acm/problem/22212

栗酱和火柴 https://ac.nowcoder.com/acm/problem/14742

[NOIP2009]多项式输出 https://ac.nowcoder.com/acm/problem/16622

更相减损术 https://ac.nowcoder.com/acm/problem/22164

数组、字符串及数据批量存储

练习题https://ac.nowcoder.com/acm/contest/19306?from=acdiscuss

随机序列 https://ac.nowcoder.com/acm/problem/205911

[NOIP2013]记数问题 https://ac.nowcoder.com/acm/problem/16538

约瑟夫环 https://ac.nowcoder.com/acm/problem/22227

[NOIP2005]校门外的树 https://ac.nowcoder.com/acm/problem/16649

比较月亮大小 https://ac.nowcoder.com/acm/problem/15431

求距离 https://ac.nowcoder.com/acm/problem/15051

数列下标 https://ac.nowcoder.com/acm/problem/18356

求逆序数 https://ac.nowcoder.com/acm/problem/208813

F课程满意度计算 https://ac.nowcoder.com/acm/problem/213401

二进制？十进制！ https://ac.nowcoder.com/acm/problem/218048

序列中整数去重 https://ac.nowcoder.com/acm/problem/25322

有序序列插入一个整数 https://ac.nowcoder.com/acm/problem/25320

打印质数表 https://ac.nowcoder.com/acm/problem/22210

素数分布 https://ac.nowcoder.com/acm/problem/54580

有序序列合并 https://ac.nowcoder.com/acm/problem/25323

杨辉三角 https://ac.nowcoder.com/acm/problem/14320

矩阵元素定位 https://ac.nowcoder.com/acm/problem/54155

上三角矩阵判定 https://ac.nowcoder.com/acm/problem/54159

扫雷 https://ac.nowcoder.com/acm/problem/52069

Matrix https://ac.nowcoder.com/acm/problem/13883

矩阵转置 https://ac.nowcoder.com/acm/problem/54160

wyh的矩阵 https://ac.nowcoder.com/acm/problem/15426

病菌感染 https://ac.nowcoder.com/acm/problem/16121

李在赣神魔 https://ac.nowcoder.com/acm/problem/207419

数独合理吗？ https://ac.nowcoder.com/acm/problem/220705

回型矩阵 https://ac.nowcoder.com/acm/problem/22230

蛇形矩阵 https://ac.nowcoder.com/acm/problem/22231

竞赛技巧 https://ac.nowcoder.com/acm/problem/15056

[NOIP2006]明明的随机数 https://ac.nowcoder.com/acm/problem/16669

lcryin的排序题 https://ac.nowcoder.com/acm/problem/213927

[NOIP2009]分数线划定 https://ac.nowcoder.com/acm/problem/16625

[NOIP2007]奖学金 https://ac.nowcoder.com/acm/problem/16639

[NOIP2003]乒乓球 https://ac.nowcoder.com/acm/problem/16674

斗兽棋 https://ac.nowcoder.com/acm/problem/204868

珂朵莉的假toptree https://ac.nowcoder.com/acm/problem/14831

BFS https://ac.nowcoder.com/acm/problem/17870

简写单词 https://ac.nowcoder.com/acm/problem/207915

小y的考试 https://ac.nowcoder.com/acm/problem/212819

字符统计 https://ac.nowcoder.com/acm/problem/213352

Alanyyds https://ac.nowcoder.com/acm/problem/216136

[NOIP2008]笨小猴 https://ac.nowcoder.com/acm/problem/16613

添加逗号 https://ac.nowcoder.com/acm/problem/15054

[NOIP2000]计算器的改良 https://ac.nowcoder.com/acm/problem/16749

Check In https://ac.nowcoder.com/acm/problem/14112

[NOIP2011]统计单词数 https://ac.nowcoder.com/acm/problem/16585

译码 https://ac.nowcoder.com/acm/problem/15940

字符串操作 https://ac.nowcoder.com/acm/problem/14895

火车上的2连座 https://ac.nowcoder.com/acm/problem/15758

String https://ac.nowcoder.com/acm/problem/15661

[NOIP2017]图书管理员 https://ac.nowcoder.com/acm/problem/16422

[NOIP2009]潜伏者 https://ac.nowcoder.com/acm/problem/16609

[NOIP2012]Vigenère 密码 https://ac.nowcoder.com/acm/problem/16560

字符串分类 https://ac.nowcoder.com/acm/problem/201626

[NOIP2005]谁拿了最多奖学金 https://ac.nowcoder.com/acm/problem/16654

勇气获得机 https://ac.nowcoder.com/acm/problem/14710

函数与递归

练习题https://ac.nowcoder.com/acm/contest/19859?from=acdiscuss

[NOIP2010]数字统计 https://ac.nowcoder.com/acm/problem/16599

日历中的数字 https://ac.nowcoder.com/acm/problem/13584

素数回文 https://ac.nowcoder.com/acm/problem/14703

数位五五 https://ac.nowcoder.com/acm/problem/22168

233 https://ac.nowcoder.com/acm/problem/15756

Hello I am HERE! https://ac.nowcoder.com/acm/problem/15902

[NOIP1999]回文数 https://ac.nowcoder.com/acm/problem/16811

兔子的序列 https://ac.nowcoder.com/acm/problem/20858

素数中的等差数列 https://ac.nowcoder.com/acm/problem/208815

[NOIP2003]侦探推理 https://ac.nowcoder.com/acm/problem/16680

小X的多边形 https://ac.nowcoder.com/acm/problem/16130

The Biggest Water Problem https://ac.nowcoder.com/acm/problem/15173

小q的数列 https://ac.nowcoder.com/acm/problem/15979

[NOIP2001]求先序排列 https://ac.nowcoder.com/acm/problem/16692

中序序列 https://ac.nowcoder.com/acm/problem/204382

[NOIP2004]FBI树 https://ac.nowcoder.com/acm/problem/16660

[NOIP2003]加分二叉树 https://ac.nowcoder.com/acm/problem/16681

对称二叉树 https://ac.nowcoder.com/acm/problem/21241

大吉大利，今晚吃鸡 https://ac.nowcoder.com/acm/problem/14585

Bits https://ac.nowcoder.com/acm/problem/201605

[NOIP2013]表达式求值 https://ac.nowcoder.com/acm/problem/16539

重返小学 https://ac.nowcoder.com/acm/problem/21181

表达式计算4 https://ac.nowcoder.com/acm/problem/50999

栈、队列和stl

练习题https://ac.nowcoder.com/acm/contest/19850?from=acdiscuss

老子的全排列呢 https://ac.nowcoder.com/acm/problem/15128

装进肚子 https://ac.nowcoder.com/acm/problem/14721

牛牛的三角形 https://ac.nowcoder.com/acm/problem/204117

[NOIP1998]拼数 https://ac.nowcoder.com/acm/problem/16783

好串 https://ac.nowcoder.com/acm/problem/21874

Rails https://ac.nowcoder.com/acm/problem/14326

栈和排序 https://ac.nowcoder.com/acm/problem/14893

吐泡泡 https://ac.nowcoder.com/acm/problem/15029

牛牛与后缀表达式 https://ac.nowcoder.com/acm/problem/212914

Keep In Line https://ac.nowcoder.com/acm/problem/13822

Number https://ac.nowcoder.com/acm/problem/14615

指纹锁 https://ac.nowcoder.com/acm/problem/17508

younik要排号 https://ac.nowcoder.com/acm/problem/210768

Let'sPlayCurling https://ac.nowcoder.com/acm/problem/216012

模拟、枚举与贪心

练习题https://ac.nowcoder.com/acm/contest/19851?from=acdiscuss

四舍五入 https://ac.nowcoder.com/acm/problem/200369

安卓图案解锁 https://ac.nowcoder.com/acm/problem/13585

从后台研发到跑路 https://ac.nowcoder.com/acm/problem/13588

Captcha Cracker https://ac.nowcoder.com/acm/problem/13814

回文数 https://ac.nowcoder.com/acm/problem/212226

[NOIP2017]时间复杂度 https://ac.nowcoder.com/acm/problem/16415

[NOIP2016]玩具谜题 https://ac.nowcoder.com/acm/problem/16426

[NOIP2015]神奇的幻方 https://ac.nowcoder.com/acm/problem/16464

Tic-Tac-Toe https://ac.nowcoder.com/acm/problem/200519

I love you https://ac.nowcoder.com/acm/problem/201612

[NOIP2007]Hanoi双塔问题 https://ac.nowcoder.com/acm/problem/16642

方块与收纳盒 https://ac.nowcoder.com/acm/problem/14975

答题卡 https://ac.nowcoder.com/acm/problem/205036

区间求和 https://ac.nowcoder.com/acm/problem/208910

零钱兑换 https://ac.nowcoder.com/acm/problem/22197

斐波那契 https://ac.nowcoder.com/acm/problem/18264

生日宴 https://ac.nowcoder.com/acm/problem/19244

了断局 https://ac.nowcoder.com/acm/problem/15036

脸盆大哥的木桶 https://ac.nowcoder.com/acm/problem/14670

倒水 https://ac.nowcoder.com/acm/problem/13228

Cut https://ac.nowcoder.com/acm/problem/14291

强迫症的序列 https://ac.nowcoder.com/acm/problem/15322

字典序最大的子序列 https://ac.nowcoder.com/acm/problem/15805

强迫症 https://ac.nowcoder.com/acm/problem/16301

[NOIP2007]纪念品分组 https://ac.nowcoder.com/acm/problem/16640

Eustia of the Tarnished Wings https://ac.nowcoder.com/acm/problem/19487

Shopping https://ac.nowcoder.com/acm/problem/19784

Mountain https://ac.nowcoder.com/acm/problem/19812

可持久化动态图上树状数组维护01背包 https://ac.nowcoder.com/acm/problem/19838

纸牌游戏 https://ac.nowcoder.com/acm/problem/201628

组队 https://ac.nowcoder.com/acm/problem/204859

牛牛玩平板 https://ac.nowcoder.com/acm/problem/21841

[NOIP2008]排座椅 https://ac.nowcoder.com/acm/problem/16618

算法入门

模拟、枚举与贪心

练习题 https://ac.nowcoder.com/acm/contest/20960?from=acdiscuss

[NOIP2007]字符串的展开 https://ac.nowcoder.com/acm/problem/16644

[NOIP2017]时间复杂度 https://ac.nowcoder.com/acm/problem/16415

[NOIP2010]机器翻译 https://ac.nowcoder.com/acm/problem/16589

四舍五入 https://ac.nowcoder.com/acm/problem/200369

安卓图案解锁 https://ac.nowcoder.com/acm/problem/13585

从后台研发到跑路 https://ac.nowcoder.com/acm/problem/13588

Captcha Cracker https://ac.nowcoder.com/acm/problem/13814

回文数 https://ac.nowcoder.com/acm/problem/212226

[NOIP1999]回文数 https://ac.nowcoder.com/acm/problem/16811

[NOIP2016]玩具谜题 https://ac.nowcoder.com/acm/problem/16426

[NOIP2015]神奇的幻方 https://ac.nowcoder.com/acm/problem/16464

Tic-Tac-Toe https://ac.nowcoder.com/acm/problem/200519

I love you https://ac.nowcoder.com/acm/problem/201612

[NOIP2006]明明的随机数 https://ac.nowcoder.com/acm/problem/16669

[NOIP2016]回文日期 https://ac.nowcoder.com/acm/problem/16438

[NOIP2011]铺地毯 https://ac.nowcoder.com/acm/problem/16593

[NOIP2005]校门外的树 https://ac.nowcoder.com/acm/problem/16649

值周 https://ac.nowcoder.com/acm/problem/24636

货物种类 https://ac.nowcoder.com/acm/problem/202498

储物点的距离 https://ac.nowcoder.com/acm/problem/14683

糖糖别胡说，我真的不是签到题目 https://ac.nowcoder.com/acm/problem/14583

数学考试 https://ac.nowcoder.com/acm/problem/15553

Xorto https://ac.nowcoder.com/acm/problem/14247

[HNOI2003]激光炸弹 https://ac.nowcoder.com/acm/problem/20032

「土」秘法地震 https://ac.nowcoder.com/acm/problem/53676

仓库选址 https://ac.nowcoder.com/acm/problem/202492

字符串 https://ac.nowcoder.com/acm/problem/18386

加减 https://ac.nowcoder.com/acm/problem/224938

牛牛的木板 https://ac.nowcoder.com/acm/problem/204370

丢手绢 https://ac.nowcoder.com/acm/problem/207040

[SCOI2009]生日礼物 https://ac.nowcoder.com/acm/problem/20565

[SCOI2005]扫雷MINE https://ac.nowcoder.com/acm/problem/20241

月月查华华的手机 https://ac.nowcoder.com/acm/problem/23053

ranko的手表 https://ac.nowcoder.com/acm/problem/221825

[NOIP1998]拼数 https://ac.nowcoder.com/acm/problem/16783

字典序最大的子序列 https://ac.nowcoder.com/acm/problem/15805

Shopping https://ac.nowcoder.com/acm/problem/19784

组队 https://ac.nowcoder.com/acm/problem/204859

纸牌游戏 https://ac.nowcoder.com/acm/problem/201628

[USACO 2007 Nov G]Sunscreen https://ac.nowcoder.com/acm/problem/25025

倒水 https://ac.nowcoder.com/acm/problem/13228

[NOIP2007]纪念品分组 https://ac.nowcoder.com/acm/problem/16640

牛妹和01串 https://ac.nowcoder.com/acm/problem/200183

[NOIP2008]排座椅 https://ac.nowcoder.com/acm/problem/16618

矩阵消除游戏 https://ac.nowcoder.com/acm/problem/200190

华华听月月唱歌 https://ac.nowcoder.com/acm/problem/23036

[USACO 2006 Ope B]Cows on a Leash https://ac.nowcoder.com/acm/problem/25136

[NOIP2012]国王的游戏 https://ac.nowcoder.com/acm/problem/16561

[USACO 2007 Jan S]Protecting the Flowers https://ac.nowcoder.com/acm/problem/25043

「土」巨石滚滚 https://ac.nowcoder.com/acm/problem/53681

毒瘤xor https://ac.nowcoder.com/acm/problem/18979

兔子的区间密码 https://ac.nowcoder.com/acm/problem/20860

起床困难综合症 https://ac.nowcoder.com/acm/problem/17857

[USACO 2007 Jan S]Tallest Cow https://ac.nowcoder.com/acm/problem/25044

递归与分治思想

练习题 https://ac.nowcoder.com/acm/contest/21763?from=acdiscuss

The Biggest Water Problem https://ac.nowcoder.com/acm/problem/15173

小q的数列 https://ac.nowcoder.com/acm/problem/15979

更相减损术 https://ac.nowcoder.com/acm/problem/22164

[NOIP2009]分数线划定 https://ac.nowcoder.com/acm/problem/16625

第k小数 https://ac.nowcoder.com/acm/problem/207028

求逆序数 https://ac.nowcoder.com/acm/problem/208813

逆序数 https://ac.nowcoder.com/acm/problem/15163

兔子的逆序对 https://ac.nowcoder.com/acm/problem/20861

大吉大利，今晚吃鸡 https://ac.nowcoder.com/acm/problem/14585

Bits https://ac.nowcoder.com/acm/problem/201605

[NOIP2001]求先序排列 https://ac.nowcoder.com/acm/problem/16692

中序序列 https://ac.nowcoder.com/acm/problem/204382

[NOIP2004]FBI树 https://ac.nowcoder.com/acm/problem/16660

[NOIP2013]表达式求值 https://ac.nowcoder.com/acm/problem/16539

重返小学 https://ac.nowcoder.com/acm/problem/21181

表达式计算4 https://ac.nowcoder.com/acm/problem/50999

求最值 https://ac.nowcoder.com/acm/problem/15052

逆序对 https://ac.nowcoder.com/acm/problem/14731

华华教月月做数学 https://ac.nowcoder.com/acm/problem/23046

选择颜色 https://ac.nowcoder.com/acm/problem/19115

Contest https://ac.nowcoder.com/acm/problem/13947

kotori和糖果 https://ac.nowcoder.com/acm/problem/50038

二分、三分、01分数规划

练习题 https://ac.nowcoder.com/acm/contest/22353?from=acdiscuss

[USACO 2009 Dec S]Music Notes https://ac.nowcoder.com/acm/problem/24866

完全平方数 https://ac.nowcoder.com/acm/problem/14733

[NOIP2015]跳石头 https://ac.nowcoder.com/acm/problem/16462

[USACO 2017 Dec P]Greedy Gift Takers https://ac.nowcoder.com/acm/problem/24083

[USACO 2010 Feb S]Chocolate Eating https://ac.nowcoder.com/acm/problem/24724

华华给月月准备礼物 https://ac.nowcoder.com/acm/problem/23049

[CQOI2010]扑克牌 https://ac.nowcoder.com/acm/problem/19916

[NOIP2012]借教室 https://ac.nowcoder.com/acm/problem/16564

K-th Number https://ac.nowcoder.com/acm/problem/14301

[NOIP2011]聪明的质监员 https://ac.nowcoder.com/acm/problem/16597

位数差 https://ac.nowcoder.com/acm/problem/14380

装备合成 https://ac.nowcoder.com/acm/problem/200211

[HEOI2014]南园满地堆轻絮 https://ac.nowcoder.com/acm/problem/20012

[USACO 2016 Jan S]Angry Cows https://ac.nowcoder.com/acm/problem/24017

神奇盘子 https://ac.nowcoder.com/acm/problem/16746

Brownie Slicing https://ac.nowcoder.com/acm/problem/24622

[SCOI2010]传送带 https://ac.nowcoder.com/acm/problem/20276

[SHOI2017]期末考试 https://ac.nowcoder.com/acm/problem/20439

小咪买东西 https://ac.nowcoder.com/acm/problem/14662

gpa https://ac.nowcoder.com/acm/problem/17400

堆栈、队列、单调栈、单调队列

练习题 https://ac.nowcoder.com/acm/contest/22669?from=acdiscuss

栈和排序 https://ac.nowcoder.com/acm/problem/14893

牛牛与后缀表达式 https://ac.nowcoder.com/acm/problem/212914

好串 https://ac.nowcoder.com/acm/problem/21874

Rails https://ac.nowcoder.com/acm/problem/14326

吐泡泡 https://ac.nowcoder.com/acm/problem/15029

Operating System https://ac.nowcoder.com/acm/problem/15688

小C的记事本 https://ac.nowcoder.com/acm/problem/15975

Keep In Line https://ac.nowcoder.com/acm/problem/13822

[NOIP2004]合并果子 https://ac.nowcoder.com/acm/problem/16663

[NOIP2016]蚯蚓 https://ac.nowcoder.com/acm/problem/16430

简单的数据结构 https://ac.nowcoder.com/acm/problem/14661

队列Q https://ac.nowcoder.com/acm/problem/17059

滑动窗口 https://ac.nowcoder.com/acm/problem/50528

[USACO 2009 Mar S]Look Up https://ac.nowcoder.com/acm/problem/24840

Largest Rectangle in a Histogram https://ac.nowcoder.com/acm/problem/50965

区区区间间间 https://ac.nowcoder.com/acm/problem/20806

小A的柱状图 https://ac.nowcoder.com/acm/problem/23619

[USACO 2006 Nov S]Bad Hair Day https://ac.nowcoder.com/acm/problem/25084

[USACO 2012 Mar S]Flowerpot https://ac.nowcoder.com/acm/problem/24325

优先队列、并查集

练习题 https://ac.nowcoder.com/acm/contest/22904?from=acdiscuss

[NOIP2004]合并果子 https://ac.nowcoder.com/acm/problem/16663

Running Median https://ac.nowcoder.com/acm/problem/50940

第k小 https://ac.nowcoder.com/acm/problem/214362

tokitsukaze and Soldier https://ac.nowcoder.com/acm/problem/50439

[JSOI2007]建筑抢修 https://ac.nowcoder.com/acm/problem/20154

[JSOI2010]缓存交换 https://ac.nowcoder.com/acm/problem/20185

背包 https://ac.nowcoder.com/acm/problem/17315

Cut https://ac.nowcoder.com/acm/problem/14291

Operating System https://ac.nowcoder.com/acm/problem/15688

网络优化 https://ac.nowcoder.com/acm/problem/20951

小A与任务 https://ac.nowcoder.com/acm/problem/22604

简单的数据结构 https://ac.nowcoder.com/acm/problem/14661

老子的全排列呢 https://ac.nowcoder.com/acm/problem/15128

指纹锁 https://ac.nowcoder.com/acm/problem/17508

新建 Microsoft Office Word 文档 https://ac.nowcoder.com/acm/problem/17889

牛牛爱奇数 https://ac.nowcoder.com/acm/problem/207569

Efficient Solutions https://ac.nowcoder.com/acm/problem/116634

Defeat the Enemy https://ac.nowcoder.com/acm/problem/124063

Let'sPlayCurling https://ac.nowcoder.com/acm/problem/216012

Rinne Loves Data Structure https://ac.nowcoder.com/acm/problem/22596

DongDong认亲戚 https://ac.nowcoder.com/acm/problem/23803

经商 https://ac.nowcoder.com/acm/problem/14545

[USACO 2011 Ope S]Learning Languages https://ac.nowcoder.com/acm/problem/24608

食物链 https://ac.nowcoder.com/acm/problem/16884

加边的无向图 https://ac.nowcoder.com/acm/problem/14685

小C的周末 https://ac.nowcoder.com/acm/problem/15976

[NOIP2017]奶酪 https://ac.nowcoder.com/acm/problem/16417

Parity game https://ac.nowcoder.com/acm/problem/51097

搜索与搜索剪枝

练习题 https://ac.nowcoder.com/acm/contest/23156?from=acdiscuss

老子的全排列呢 https://ac.nowcoder.com/acm/problem/15128

走出迷宫 https://ac.nowcoder.com/acm/problem/14572

模拟战役 https://ac.nowcoder.com/acm/problem/14698

Jelly https://ac.nowcoder.com/acm/problem/201613

[NOIP2014]寻找道路 https://ac.nowcoder.com/acm/problem/16498

送外卖 https://ac.nowcoder.com/acm/problem/13224

迷宫 https://ac.nowcoder.com/acm/problem/15136

「金」点石成金 https://ac.nowcoder.com/acm/problem/53680

[SDOI2016]齿轮 https://ac.nowcoder.com/acm/problem/20583

数独挑战 https://ac.nowcoder.com/acm/problem/24911

幸运数字Ⅱ https://ac.nowcoder.com/acm/problem/15291

[NOIP2017]奶酪 https://ac.nowcoder.com/acm/problem/16417

[NOIP2010]关押罪犯 https://ac.nowcoder.com/acm/problem/16591

wyh的迷宫 https://ac.nowcoder.com/acm/problem/15434

八数码 https://ac.nowcoder.com/acm/problem/51032

[NOIP2002]字串变换 https://ac.nowcoder.com/acm/problem/16742

小木棍 https://ac.nowcoder.com/acm/problem/50243

maze https://ac.nowcoder.com/acm/problem/15665

wyh的吃鸡 https://ac.nowcoder.com/acm/problem/15445

CSL的校园卡 https://ac.nowcoder.com/acm/problem/17872

Ocean Currents https://ac.nowcoder.com/acm/problem/117187

魔法数字 https://ac.nowcoder.com/acm/problem/202589

新集合 https://ac.nowcoder.com/acm/problem/204418

[SCOI2010]游戏 https://ac.nowcoder.com/acm/problem/20566

[CQOI2007]矩形RECT https://ac.nowcoder.com/acm/problem/19910

[SCOI2009]生日快乐 https://ac.nowcoder.com/acm/problem/20272

Tree Decoration https://ac.nowcoder.com/acm/problem/24623

[HAOI2008]移动玩具 https://ac.nowcoder.com/acm/problem/19975

[NOIP2000]单词接龙 https://ac.nowcoder.com/acm/problem/16758

[CQOI2013]新数独 https://ac.nowcoder.com/acm/problem/19929

[USACO 2011 Ope S]Corn Maze https://ac.nowcoder.com/acm/problem/24605

[USACO 2007 Ope S]Catch That Cow https://ac.nowcoder.com/acm/problem/25080

Lake Counting https://ac.nowcoder.com/acm/problem/24739

[NOIP2011]Mayan 游戏 https://ac.nowcoder.com/acm/problem/16595

[NOIP2009]靶形数独 https://ac.nowcoder.com/acm/problem/16612

[NOIP2004]虫食算 https://ac.nowcoder.com/acm/problem/16665

[NOIP2013]华容道 https://ac.nowcoder.com/acm/problem/16536

动态规划1：线性dp、背包问题，区间

练习题 https://ac.nowcoder.com/acm/contest/24213?from=acdiscuss

方块与收纳盒 https://ac.nowcoder.com/acm/problem/14975

舔狗舔到最后一无所有 https://ac.nowcoder.com/acm/problem/20875

可爱の星空 https://ac.nowcoder.com/acm/problem/20650

数字三角形 https://ac.nowcoder.com/acm/problem/22208

花店橱窗 https://ac.nowcoder.com/acm/problem/51216

免费馅饼 https://ac.nowcoder.com/acm/problem/16850

钉子和小球 https://ac.nowcoder.com/acm/problem/16856

[NOIP2002]过河卒 https://ac.nowcoder.com/acm/problem/16708

[NOIP2008]传球游戏 https://ac.nowcoder.com/acm/problem/16619

「木」迷雾森林 https://ac.nowcoder.com/acm/problem/53675

[NOIP2004]合唱队形 https://ac.nowcoder.com/acm/problem/16664

[NOIP1999]拦截导弹 https://ac.nowcoder.com/acm/problem/16810

数学考试 https://ac.nowcoder.com/acm/problem/15553

小A买彩票 https://ac.nowcoder.com/acm/problem/23413

购物 https://ac.nowcoder.com/acm/problem/14526

牛牛的旅游纪念品 https://ac.nowcoder.com/acm/problem/207751

[NOIP2001]装箱问题 https://ac.nowcoder.com/acm/problem/16693

[NOIP2005]采药 https://ac.nowcoder.com/acm/problem/16650

[NOIP2006]开心的金明 https://ac.nowcoder.com/acm/problem/16666

CSL分苹果 https://ac.nowcoder.com/acm/problem/17871

失衡天平 https://ac.nowcoder.com/acm/problem/19158

Music Problem https://ac.nowcoder.com/acm/problem/13885

美味菜肴 https://ac.nowcoder.com/acm/problem/14704

[NOIP2006]金明的预算方案 https://ac.nowcoder.com/acm/problem/16671

队伍配置 https://ac.nowcoder.com/acm/problem/14699

合并回文子串 https://ac.nowcoder.com/acm/problem/13230

取数游戏2 https://ac.nowcoder.com/acm/problem/14701

wyh的问题 https://ac.nowcoder.com/acm/problem/15447

[NOIP2007]矩阵取数游戏 https://ac.nowcoder.com/acm/problem/16645

石子合并 https://ac.nowcoder.com/acm/problem/50493

石子合并 https://ac.nowcoder.com/acm/problem/51170

迁徙过程中的河流 https://ac.nowcoder.com/acm/problem/207781

小A的回文串 https://ac.nowcoder.com/acm/problem/23501

[USACO 2009 Dec G]Video Game Troubles https://ac.nowcoder.com/acm/problem/24870

简单瞎搞题 https://ac.nowcoder.com/acm/problem/17193

凸多边形的划分 https://ac.nowcoder.com/acm/problem/50500

[NOIP2003]加分二叉树 https://ac.nowcoder.com/acm/problem/16681

[NOIP2008]传纸条 https://ac.nowcoder.com/acm/problem/16615

[NOIP2000]方格取数 https://ac.nowcoder.com/acm/problem/16759

[NOIP2005]过河 https://ac.nowcoder.com/acm/problem/16655

[NOIP2010]乌龟棋 https://ac.nowcoder.com/acm/problem/16590

To the Max https://ac.nowcoder.com/acm/problem/50959

[ZJOI2007]棋盘制作 https://ac.nowcoder.com/acm/problem/20471

[SCOI2005]最大子矩阵 https://ac.nowcoder.com/acm/problem/20242

[NOIP2006]能量项链 https://ac.nowcoder.com/acm/problem/16670

[USACO 2016 Ope P]262144 https://ac.nowcoder.com/acm/problem/24438

[NOIP2012]摆花 https://ac.nowcoder.com/acm/problem/16576

[NOIP2007]守望者的逃离 https://ac.nowcoder.com/acm/problem/16641

[NOIP2018]货币系统 https://ac.nowcoder.com/acm/problem/21467

[USACO 2009 Oct G]Bessie's Weight Problem https://ac.nowcoder.com/acm/problem/24851

[HAOI2012]音量调节 https://ac.nowcoder.com/acm/problem/19990

[NOIP2014]飞扬的小鸟 https://ac.nowcoder.com/acm/problem/16496

[CQOI2007]涂色PAINT https://ac.nowcoder.com/acm/problem/19909

[USACO 2008 Jan S]Running https://ac.nowcoder.com/acm/problem/24949

金币馅饼 https://ac.nowcoder.com/acm/problem/25147

饥饿的牛 https://ac.nowcoder.com/acm/problem/25148

[NOIP2001]统计单词个数 https://ac.nowcoder.com/acm/problem/16696

Min酱要旅行 https://ac.nowcoder.com/acm/problem/210520

小小粉刷匠 https://ac.nowcoder.com/acm/problem/16129

[SCOI2009]粉刷匠 https://ac.nowcoder.com/acm/problem/20273

跳跳跳 https://ac.nowcoder.com/acm/problem/227595

动态规划2：树形dp、状压dp、

练习题 https://ac.nowcoder.com/acm/contest/25022?from=acdiscuss

小G有一个大树 https://ac.nowcoder.com/acm/problem/15033

没有上司的舞会 https://ac.nowcoder.com/acm/problem/51178

[USACO 2008 Jan G]Cell Phone Network https://ac.nowcoder.com/acm/problem/24953

Strategic game https://ac.nowcoder.com/acm/problem/51222

树上子链 https://ac.nowcoder.com/acm/problem/202475

二叉苹果树 https://ac.nowcoder.com/acm/problem/50505

选课 https://ac.nowcoder.com/acm/problem/51179

Tree https://ac.nowcoder.com/acm/problem/19782

Rinne Loves Edges https://ac.nowcoder.com/acm/problem/22598

电话网络 https://ac.nowcoder.com/acm/problem/211219

[USACO 2018 Feb G]Directory Traversal https://ac.nowcoder.com/acm/problem/24263

[HAOI2015]树上染色 https://ac.nowcoder.com/acm/problem/19996

蓝魔法师 https://ac.nowcoder.com/acm/problem/20811

Accumulation Degree https://ac.nowcoder.com/acm/problem/51180

[USACO 2010 Mar G]Great Cow Gathering https://ac.nowcoder.com/acm/problem/24734

炮兵阵地 https://ac.nowcoder.com/acm/problem/16886

[SCOI2005]互不侵犯KING https://ac.nowcoder.com/acm/problem/20240

Mondriaan's Dream https://ac.nowcoder.com/acm/problem/51189

Most Powerful https://ac.nowcoder.com/acm/problem/15832

德玛西亚万岁 https://ac.nowcoder.com/acm/problem/15034

郊区春游 https://ac.nowcoder.com/acm/problem/16122

简单环 https://ac.nowcoder.com/acm/problem/16544

方格填色 https://ac.nowcoder.com/acm/problem/17890

[AHOI2009]CHESS 中国象棋 https://ac.nowcoder.com/acm/problem/19885

[ZJOI2009]多米诺骨牌 https://ac.nowcoder.com/acm/problem/20485

mixup2混乱的奶牛 https://ac.nowcoder.com/acm/problem/210981

[USACO 2015 Jan G]Moovie Mooving https://ac.nowcoder.com/acm/problem/24158

[USACO 2013 Nov G]No Change https://ac.nowcoder.com/acm/problem/24416

[USACO 2006 Oct S]Corn Fields https://ac.nowcoder.com/acm/problem/25088

图论基础、最短路与最小生成树

练习题 https://ac.nowcoder.com/acm/contest/26077?from=acdiscuss

[NOIP2003]神经网络 https://ac.nowcoder.com/acm/problem/16679

[NOIP2013]车站分级 https://ac.nowcoder.com/acm/problem/16541

[HNOI2015]菜肴制作 https://ac.nowcoder.com/acm/problem/20115

旅行 https://ac.nowcoder.com/acm/problem/14352

迷宫2 https://ac.nowcoder.com/acm/problem/15196

最短路 https://ac.nowcoder.com/acm/problem/15479

公交线路 https://ac.nowcoder.com/acm/problem/17511

挖沟 https://ac.nowcoder.com/acm/problem/17509

Forsaken喜欢独一无二的树 https://ac.nowcoder.com/acm/problem/53074

道路建设 https://ac.nowcoder.com/acm/problem/15108

Highway https://ac.nowcoder.com/acm/problem/52867

小雨坐地铁 https://ac.nowcoder.com/acm/problem/26257

[USACO 2007 Ope S]Catch That Cow https://ac.nowcoder.com/acm/problem/25080

[USACO 2009 Nov S]Job Hunt https://ac.nowcoder.com/acm/problem/24858

[USACO 2010 Dec S]Apple Delivery https://ac.nowcoder.com/acm/problem/24755

[USACO 2012 Dec S]Milk Routing https://ac.nowcoder.com/acm/problem/24370

[USACO 2007 Ope B]Bronze Cow Party https://ac.nowcoder.com/acm/problem/25077

[USACO 2008 Ope S]Clear And Present Danger https://ac.nowcoder.com/acm/problem/25005

[USACO 2007 Nov S]Cow Hurdles https://ac.nowcoder.com/acm/problem/25020

胖胖的牛牛 https://ac.nowcoder.com/acm/problem/208246

ObstacleCourse障碍训练课 https://ac.nowcoder.com/acm/problem/212331

Meeting https://ac.nowcoder.com/acm/problem/124167

[NOIP2015]信息传递 https://ac.nowcoder.com/acm/problem/16466

[USACO 2007 Mar G]Ranking the Cows https://ac.nowcoder.com/acm/problem/25064

[USACO 2008 Jan S]Cow Contest https://ac.nowcoder.com/acm/problem/24948

[NOIP2001]Car的旅行路线 https://ac.nowcoder.com/acm/problem/16697

大吉大利，晚上吃鸡！ https://ac.nowcoder.com/acm/problem/14501

追债之旅 https://ac.nowcoder.com/acm/problem/14700

[NOIP2009]最优贸易 https://ac.nowcoder.com/acm/problem/16611

最优贸易 https://ac.nowcoder.com/acm/problem/50379

Rinne Loves Graph https://ac.nowcoder.com/acm/problem/22594

Rinne Loves Dynamic Graph https://ac.nowcoder.com/acm/problem/22600

[NOIP2017]逛公园 https://ac.nowcoder.com/acm/problem/16416

wpy的请求 https://ac.nowcoder.com/acm/problem/20684

道路和航线 https://ac.nowcoder.com/acm/problem/50381

[SCOI2012]滑雪与时间胶囊 https://ac.nowcoder.com/acm/problem/20568

[HAOI2006]聪明的猴子 https://ac.nowcoder.com/acm/problem/19964

虫洞 Wormholes https://ac.nowcoder.com/acm/problem/50385

银河英雄传说 https://ac.nowcoder.com/acm/problem/16889

[USACO 2014 Mar S]Watering the Fields https://ac.nowcoder.com/acm/problem/24587

[SCOI2005]繁忙的都市 https://ac.nowcoder.com/acm/problem/20245

布局 Layout https://ac.nowcoder.com/acm/problem/50390

[SCOI2011]糖果 https://ac.nowcoder.com/acm/problem/20284

[HAOI2012]ROAD https://ac.nowcoder.com/acm/problem/19987

简单数学基础

练习题 https://ac.nowcoder.com/acm/contest/26656?from=acdiscuss

素数判断 https://ac.nowcoder.com/acm/problem/14399

素数回文 https://ac.nowcoder.com/acm/problem/14703

逆序对 https://ac.nowcoder.com/acm/problem/14731

素数分布 https://ac.nowcoder.com/acm/problem/54580

Forsaken喜欢数论 https://ac.nowcoder.com/acm/problem/53079

漂亮数 https://ac.nowcoder.com/acm/problem/224933

H、Diff-prime Pairs https://ac.nowcoder.com/acm/problem/17247

立方数 https://ac.nowcoder.com/acm/problem/201985

绿魔法师 https://ac.nowcoder.com/acm/problem/20812

最大公约数(lcm) https://ac.nowcoder.com/acm/problem/16710

同余方程 https://ac.nowcoder.com/acm/problem/50565

【模板】同余方程 https://ac.nowcoder.com/acm/problem/229005

[NOIP2012]同余方程 https://ac.nowcoder.com/acm/problem/16563

华华对月月的忠诚 https://ac.nowcoder.com/acm/problem/23050

异或(xor) https://ac.nowcoder.com/acm/problem/16559

斐波那契 https://ac.nowcoder.com/acm/problem/200184

斐波那契 https://ac.nowcoder.com/acm/problem/18264

一个小问题 https://ac.nowcoder.com/acm/problem/15068

数学题 https://ac.nowcoder.com/acm/problem/20667

[SDOI2008]仪仗队 https://ac.nowcoder.com/acm/problem/20313

华华给月月出题 https://ac.nowcoder.com/acm/problem/23047

月月给华华出题 https://ac.nowcoder.com/acm/problem/23048

数字权重 https://ac.nowcoder.com/acm/problem/18985

[AHOI2005]SHUFFLE 洗牌 https://ac.nowcoder.com/acm/problem/19872

[HAOI2012]容易题(EASY) https://ac.nowcoder.com/acm/problem/19989

[HAOI2016]放棋子 https://ac.nowcoder.com/acm/problem/19999

[SCOI2010]字符串 https://ac.nowcoder.com/acm/problem/20277

[NOIP2011]计算系数 https://ac.nowcoder.com/acm/problem/16596

[NOIP2013]转圈游戏 https://ac.nowcoder.com/acm/problem/16525

大水题 https://ac.nowcoder.com/acm/problem/15079

无关(relationship) https://ac.nowcoder.com/acm/problem/16513

[JSOI2011]分特产 https://ac.nowcoder.com/acm/problem/20189

魔改森林 https://ac.nowcoder.com/acm/problem/200324

Frogs https://ac.nowcoder.com/acm/problem/124160

最后的晚餐(dinner) https://ac.nowcoder.com/acm/problem/19857

守护白起 https://ac.nowcoder.com/acm/problem/15069

造一造 https://ac.nowcoder.com/acm/problem/15077

递推 https://ac.nowcoder.com/acm/problem/14607

愉快的递推式 https://ac.nowcoder.com/acm/problem/25354

又见斐波那契 https://ac.nowcoder.com/acm/problem/15666

粉嘤花之恋 https://ac.nowcoder.com/acm/problem/18987

1408 https://ac.nowcoder.com/acm/problem/19832

公式题（2） https://ac.nowcoder.com/acm/problem/20661

游戏 https://ac.nowcoder.com/acm/problem/20909

红色和紫色 https://ac.nowcoder.com/acm/problem/223888

Game https://ac.nowcoder.com/acm/problem/201610

小石的签到题 https://ac.nowcoder.com/acm/problem/26212

游戏 https://ac.nowcoder.com/acm/problem/18388

小牛vs小客 https://ac.nowcoder.com/acm/problem/15065

硬币游戏 https://ac.nowcoder.com/acm/problem/18993

石子游戏 https://ac.nowcoder.com/acm/problem/19156

取石子游戏 1 https://ac.nowcoder.com/acm/problem/50614

取石子游戏 2 https://ac.nowcoder.com/acm/problem/50615

游戏 https://ac.nowcoder.com/acm/problem/19325

收益 https://ac.nowcoder.com/acm/problem/18389

卡牌游戏 https://ac.nowcoder.com/acm/problem/19777

Happy Running https://ac.nowcoder.com/acm/problem/15532

只能吃土豆的牛牛 https://ac.nowcoder.com/acm/problem/208253

[NOIP2009]Hankson的趣味题 https://ac.nowcoder.com/acm/problem/16610

[NOIP2017]小凯的疑惑 https://ac.nowcoder.com/acm/problem/16414

[NOIP2016]组合数问题 https://ac.nowcoder.com/acm/problem/16429

计数器 https://ac.nowcoder.com/acm/problem/17873

线段树与树状数组

练习题 https://ac.nowcoder.com/acm/contest/26896?from=acdiscuss

[USACO 2007 Jan S]Balanced Lineup https://ac.nowcoder.com/acm/problem/25045

践踏 https://ac.nowcoder.com/acm/problem/21125

[JSOI2008]最大数MAXNUMBER https://ac.nowcoder.com/acm/problem/20164

[SCOI2007]降雨量 https://ac.nowcoder.com/acm/problem/20259

签到题 https://ac.nowcoder.com/acm/problem/22593

A Simple Problem with Integers https://ac.nowcoder.com/acm/problem/51100

A Simple Problem with Integers https://ac.nowcoder.com/acm/problem/50454

数据结构 https://ac.nowcoder.com/acm/problem/19246

[AHOI2009]SEQ 维护序列SEQ https://ac.nowcoder.com/acm/problem/19889

区区区间 https://ac.nowcoder.com/acm/problem/200195

外挂 https://ac.nowcoder.com/acm/problem/25879

数星星 Stars https://ac.nowcoder.com/acm/problem/50428

小石的妹子 https://ac.nowcoder.com/acm/problem/26253

迪拜的超市 https://ac.nowcoder.com/acm/problem/20960

整数序列 https://ac.nowcoder.com/acm/problem/17877

A Simple Problem with Integers https://ac.nowcoder.com/acm/problem/17383

珂朵莉的数列 https://ac.nowcoder.com/acm/problem/14522

逆序数 https://ac.nowcoder.com/acm/problem/15163

华华开始学信息学 https://ac.nowcoder.com/acm/problem/23054

牛牛的最美味和最不美味的零食 https://ac.nowcoder.com/acm/problem/208250

[SCOI2010]序列操作 https://ac.nowcoder.com/acm/problem/20279

小H的询问 https://ac.nowcoder.com/acm/problem/15162

Hotel https://ac.nowcoder.com/acm/problem/24961

红球进黑洞 https://ac.nowcoder.com/acm/problem/19429

01串 https://ac.nowcoder.com/acm/problem/19469

[USACO 2008 Nov G]Light Switching https://ac.nowcoder.com/acm/problem/24984

求最大值 https://ac.nowcoder.com/acm/problem/14402

Forsaken的三维数点 https://ac.nowcoder.com/acm/problem/53370

Lost Cows https://ac.nowcoder.com/acm/problem/51101

连续区间的最大公约数 https://ac.nowcoder.com/acm/problem/15557

情人节的电灯泡 https://ac.nowcoder.com/acm/problem/15172

换个角度思考 https://ac.nowcoder.com/acm/problem/19427

[SDOI2009]HH的项链 https://ac.nowcoder.com/acm/problem/20325

小魂和他的数列 https://ac.nowcoder.com/acm/problem/54585

小翔和泰拉瑞亚 https://ac.nowcoder.com/acm/problem/54586

[HEOI2012]采花 https://ac.nowcoder.com/acm/problem/20545

Stars in Your Window https://ac.nowcoder.com/acm/problem/51112

[USACO 2007 Ope S]City Horizon https://ac.nowcoder.com/acm/problem/25078

[USACO 2012 Feb S]Overplanting https://ac.nowcoder.com/acm/problem/24309

[USACO 2010 Nov G]Cow Photographs https://ac.nowcoder.com/acm/problem/24748

RMQ与LCA

练习题 https://ac.nowcoder.com/acm/problem/collection/1266?from=acdiscuss