有一个整数序列（可能有重复的整数），现删除指定的某一个整数，输出删除指定数字之后的序列，序列中未被删除数字的前后位置没有发生改变。
若序列中有多个指定的数，需要一起删除。
数据范围：序列长度和序列中的值都满足 
[编程题]序列中删除指定数字
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int n = in.nextInt();
int[] nums = new int[n];
for (int i = 0; i < n; i++) {
nums[i] = in.nextInt();
}
int num = in.nextInt();
for (int i = 0; i < n; i++) { //用了一个比较取巧的方法，没有真正删除
if (nums[i] == num){
continue;
}
System.out.print(nums[i]+" ");
}
}
}
发表于 2024-08-29 12:32:29
回复(0)
import java.util.Scanner;
// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
// 注意 hasNext 和 hasNextLine 的区别
while (in.hasNextInt()) { // 注意 while 处理多个 case
int a = in.nextInt();
int num[] =new int[a];
for(int i =0;i<a;i++) {
num[i] = in.nextInt();
}
int b = in.nextInt();
for(int i =0;i<a;i++) {
if(num[i]!=b) {
System.out.print(num[i]+" ");
}
}
}
}
}
发表于 2024-03-02 11:59:48
回复(0)
import java.util.Scanner;
import java.util.ArrayList;
import java.util.List;;
// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
// 注意 hasNext 和 hasNextLine 的区别
while (in.hasNextInt()) { // 注意 while 处理多个 case
int a = in.nextInt();
List<Integer> arrayList = new ArrayList<Integer>();
for (int i = 0; i < a; i++) {
arrayList.add(in.nextInt());
}
int b = in.nextInt();
for (int i : arrayList) {
if (i == b) {
} else {
System.out.print(i + " ");
}
}
}
}
}
发表于 2024-01-21 11:01:57
回复(0)
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Scanner;
// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
String nums = sc.nextLine();
String s = sc.nextLine();
ArrayList<Integer> list = new ArrayList<>();
String[] split = s.split(" ");
for (int i = 0; i < split.length; i++) {
int num = Integer.parseInt(split[i]);
list.add(num);
}
String aimnum = sc.nextLine();
int aim = Integer.parseInt(aimnum);
Iterator<Integer> it = list.iterator();
while (it.hasNext()) {
Integer next = it.next();
if (aim == next) {
it.remove();
} else {
System.out.print(next + " ");
}
}
}
}
发表于 2023-11-29 16:32:29
回复(0)
import java.util.*;
// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int a=in.nextInt();
ArrayList<Integer> arr=new ArrayList<Integer>();
for(int i=0;i<a;i++){
arr.add(in.nextInt());
}
int b=in.nextInt();
for(int i=0;i<arr.size();i++){
if(arr.get(i) !=b){
System.out.print(arr.get(i)+" ");
}
}
}
}
发表于 2022-11-27 16:16:41
回复(0)
import java.util.*;
public class Main{
public static void main(String[] args){
Scanner sc=new Scanner(System.in);
int n=sc.nextInt();
List<Integer> list=new ArrayList<>();
for(int i=0;i<n;i++){
list.add(sc.nextInt());
}
int x=sc.nextInt();
for(int num:list){
if(num!=x){
System.out.printf("%d ",num);
}
}
}
}
发表于 2022-08-10 22:08:19
回复(0)
import java.util.*;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
while(scanner.hasNext()){
int n = scanner.nextInt();
//要输入数据的集合
List<Integer> inputList = new ArrayList<>();
//本来想用remove方法，发现其理解有问题
//将过滤后的数放进一个集合中
List<Integer> toDeleteNumList = new ArrayList<>();
for(int i = 0;i < n;i++){
inputList.add(scanner.nextInt());
}
//要删除的数
int toDeleteNum = scanner.nextInt();
//toDeleteNumList.add(toDeleteNumList);
//将要删除的数与集合中的各元素进行判断，若其中有要删除的数，该数不会添加进新的集合中
for(int j = 0; j < inputList.size();j++){
if(toDeleteNum != inputList.get(j)){
toDeleteNumList.add(inputList.get(j));
}
}
//输出
for(int k = 0;k < toDeleteNumList.size();k++){
System.out.print(toDeleteNumList.get(k) + " ");
}
}
}
}
发表于 2022-06-30 14:30:22
回复(0)
import java.util.*;
public class Main{
public static void main(String[] args){
Scanner sc=new Scanner(System.in);
int n=sc.nextInt();
int [ ] arr=new int[n];
for(int i=0;i<n;i++)
arr[i]=sc.nextInt();
int k=sc.nextInt();//输入需要删除的数字
for(int j=0;j<n;j++){
if(k!=arr[j]) //如果输入的数字和数组中的数字不重复的话就直接打印
//如果重复就直接跳到下一个else里面直接continue
//返回在for循环中重新判断下一个数字，直接跳过重复的数
//跳过重复的数就等于直接不打印这个重复的数
System.out.print(arr[j]+" ");
else continue;
}
}
}
发表于 2022-03-09 16:30:50
回复(0)
import java.io.*;
public class Main{
public static void main(String[] args) throws IOException {
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
int lineOne = Integer.parseInt(bufferedReader.readLine());
String[] lineTwo = bufferedReader.readLine().split(" ");
int lineThree = Integer.parseInt(bufferedReader.readLine());
StringBuilder s = new StringBuilder();
for (int i = 0; i < lineOne; i++) {
if (lineThree != Integer.parseInt(lineTwo[i])){
s.append(lineTwo[i]+" ");
}
}
System.out.println(s);
}
}
发表于 2021-10-28 00:28:04
回复(0)
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
while (scanner.hasNext()) {
int n = scanner.nextInt();
int[] a = new int[n];
for (int i = 0; i < n; i++) {
a[i] = scanner.nextInt();
}
int x = scanner.nextInt();
for (int item :
a) {
if (item != x) {
System.out.print(item + " ");
}
}
}
scanner.close();
}
}
发表于 2021-10-15 23:30:52
回复(0)
import java.util.Scanner;
import java.util.ArrayList;
public class Main{
public static void main(String[] args){
Scanner input=new Scanner(System.in);
int n=input.nextInt();
ArrayList <Integer> list=new ArrayList <>(n);
for(int i=0;i<n;i++)
{
list.add(input.nextInt());
}
int a=input.nextInt();
ArrayList <Integer> list1=new ArrayList<>();
list1.add(a);
list.removeAll(list1);
for(int i:list){
System.out.print(i+" ");
}
}
}
import java.util.ArrayList;
public class Main{
public static void main(String[] args){
Scanner input=new Scanner(System.in);
int n=input.nextInt();
ArrayList <Integer> list=new ArrayList <>(n);
for(int i=0;i<n;i++)
{
list.add(input.nextInt());
}
int a=input.nextInt();
ArrayList <Integer> list1=new ArrayList<>();
list1.add(a);
list.removeAll(list1);
for(int i:list){
System.out.print(i+" ");
}
}
}
发表于 2021-08-17 22:55:38
回复(0)
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
while (sc.hasNextInt()) {
int n = sc.nextInt();
List<Integer> list = new ArrayList<>();
for (int i = 0; i < n; i++) {
list.add(sc.nextInt());
}
int m = sc.nextInt();
List<Integer> newList = new ArrayList<>();
for (int i = 0; i < list.size(); i++) {
if (m != list.get(i)) {
newList.add(list.get(i));
}
}
for (int i = 0; i < newList.size(); i++) {
System.out.print(newList.get(i) + " ");
}
}
}
}
发表于 2021-07-15 15:47:09
回复(0)
没必要那么复杂吧，搞一堆集合。。。
import java.util.*;
public class Main{
public static void main(String[] args){
Scanner input=new Scanner(System.in);
int n=input.nextInt();
int[] arr=new int[n];
for(int i=0;i<n;i++){
arr[i]=input.nextInt();
}
int dest=input.nextInt();
for(int i=0;i<n;i++){
int out=arr[i];
if(out!=dest){
System.out.print(out+" ");
}
}
System.out.println();
}
}
public class Main{
public static void main(String[] args){
Scanner input=new Scanner(System.in);
int n=input.nextInt();
int[] arr=new int[n];
for(int i=0;i<n;i++){
arr[i]=input.nextInt();
}
int dest=input.nextInt();
for(int i=0;i<n;i++){
int out=arr[i];
if(out!=dest){
System.out.print(out+" ");
}
}
System.out.println();
}
}
发表于 2020-12-03 20:13:17
回复(2)
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;
import java.util.stream.Collectors;
// lambda式解法
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
while (sc.hasNext()) {
int n = sc.nextInt();
List<String> list = new ArrayList<>();
for (int i = 0; i < n; i++) {
int temp = sc.nextInt();
list.add(Integer.toString(temp));
}
String key = Integer.toString(sc.nextInt());
//使用filter过滤掉key的元素
list = list.stream()
.filter(e->!e.equals(key))
.collect(Collectors.toList());
//每个list元素中间使用空格分割
String s = list.stream().collect(Collectors.joining(" "));
System.out.println(s);
}
}
}
发表于 2020-09-23 13:54:52
回复(1)
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
while(sc.hasNext()) {
int len=sc.nextInt();
int[] arr=new int[len];
for(int i=0;i<len;i++){
arr[i]=sc.nextInt();
}
int deletenum=sc.nextInt();
for(int i=0;i<len;i++){
if(deletenum==arr[i]){
System.out.print("");
}else{
System.out.print(arr[i]+" ");
}
}
}
}
}
public class Main {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
while(sc.hasNext()) {
int len=sc.nextInt();
int[] arr=new int[len];
for(int i=0;i<len;i++){
arr[i]=sc.nextInt();
}
int deletenum=sc.nextInt();
for(int i=0;i<len;i++){
if(deletenum==arr[i]){
System.out.print("");
}else{
System.out.print(arr[i]+" ");
}
}
}
}
}
发表于 2020-09-15 17:19:58
回复(0)
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.Iterator;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner scanner=new Scanner(System.in);
while(scanner.hasNext()) {
int len=scanner.nextInt();
ArrayList<Integer> arrayList=new ArrayList<Integer>();
for(int i=0;i<len;i++) {
arrayList.add(scanner.nextInt());
}
int item=scanner.nextInt();
ArrayList<Integer> result=Main.deleteItem(arrayList, item);
for(int i=0;i<result.size();i++) {
System.out.print(result.get(i)+" ");
}
}
}
public static ArrayList<Integer> deleteItem(ArrayList<Integer> arr,int item){
ArrayList<Integer> result=new ArrayList<Integer>();
for (Integer integer : arr) {
if(integer!=item) {
result.add(integer);
}
}
return result;
}
}
import java.util.Arrays;
import java.util.Comparator;
import java.util.Iterator;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner scanner=new Scanner(System.in);
while(scanner.hasNext()) {
int len=scanner.nextInt();
ArrayList<Integer> arrayList=new ArrayList<Integer>();
for(int i=0;i<len;i++) {
arrayList.add(scanner.nextInt());
}
int item=scanner.nextInt();
ArrayList<Integer> result=Main.deleteItem(arrayList, item);
for(int i=0;i<result.size();i++) {
System.out.print(result.get(i)+" ");
}
}
}
public static ArrayList<Integer> deleteItem(ArrayList<Integer> arr,int item){
ArrayList<Integer> result=new ArrayList<Integer>();
for (Integer integer : arr) {
if(integer!=item) {
result.add(integer);
}
}
return result;
}
}
发表于 2020-06-12 16:20:57
回复(0)
问题信息
通过挑战的用户
查看代码-
2024-02-13 14:23:51 -
2023-05-13 19:37:32
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2023-03-11 16:57:00
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2022-09-16 17:58:10
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2022-09-16 10:57:50
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