Casual working
In addition to an array of integers in two numbers, the other numbers appear twice. Please write a program to find these two figures appear only.
Thinking
Also use to map the set (a good map collection Dafa)
Code
//num1,num2分别为长度为1的数组。传出参数
//将num1[0],num2[0]设置为返回结果'
import java.util.*;
public class Solution {
public void FindNumsAppearOnce(int [] array,int num1[] , int num2[]) {
Map<Integer,Integer> map=new HashMap<>();
for(int i=0;i<array.length;i++){
map.put(array[i],map.containsKey(array[i])? map.get(array[i])+1:1);
}
int p=0;
for(int i=0;i<array.length;i++){
if(map.get(array[i])==1&&p==0){
p=1;
num1[0]=array[i];
}
if(map.get(array[i])==1)
num2[0]=array[i];
}
}
}