数组中只出现一次的数
数组中只出现一次的数字
http://www.nowcoder.com/questionTerminal/e02fdb54d7524710a7d664d082bb7811
import java.util.HashSet;
import java.util.Iterator;
public class Solution {
public void FindNumsAppearOnce(int [] array,int num1[] , int num2[]) {
HashSet<Integer> set = new HashSet<>();
for(int i = 0;i<array.length;i++){
if(!set.contains(array[i]))set.add(array[i]);
else set.remove((Object)array[i]);
}
Iterator<Integer> it = set.iterator();
if(it.hasNext())num1[0] = it.next();
if(it.hasNext())num2[0] = it.next();
}
}