蓝桥杯算法训练-删除数组零元素-题解（Java代码）

解题思路:

注意事项:

参考代码:

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Collections;

import java.util.Scanner;

public class Main {

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

Scanner scanner=new Scanner(System.in);

int n=scanner.nextInt();

int [] arr=new int[n];

for (int i = 0; i < arr.length; i++) {

arr[i]=scanner.nextInt();

}

ArrayList<Integer>list=new ArrayList<Integer>();

int count=0;

for (int i = 0; i <=arr.length-1; i++) {

if (arr[i]!=0) {

list.add(arr[i]);

count++;

}

}

System.out.println(count);

for (Integer integer : list) {

System.out.print(integer+" ");

}

}

}