树状数组训练题
题目太多做不完,意思下就好了...就1个hdu的模板题 1个蓝题 7个紫题 1个黑题结尾吧~
https://www.luogu.com.cn/problem/P6477 (pass)
https://www.luogu.com.cn/problem/P3760 (pass)
https://www.luogu.com.cn/problem/P3157 (pass)
https://www.luogu.com.cn/problem/P3810 (pass)
https://www.luogu.com.cn/problem/P6375 (pass)
https://www.luogu.com.cn/problem/P4390 (pass)
https://www.luogu.com.cn/problem/P2880 (模板题,因为hdu炸了,洛谷是个好地方哈.)(pass)
https://www.luogu.com.cn/problem/P3987
https://www.luogu.com.cn/problem/P3287 (pass)
https://www.luogu.com.cn/problem/P4899
ok就这么多了~刷完刷下kuangbin线段树...
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