题解 | #数组中只出现一次的两个数字#
数组中只出现一次的两个数字
https://www.nowcoder.com/practice/389fc1c3d3be4479a154f63f495abff8
如高赞答案所说,这是c语言的解法,记录一下这个巧妙的思路
#个人随笔记##题解#
int* FindNumsAppearOnce(int* array, int arrayLen, int* returnSize ) {
// write code here
int* nums = (int*)malloc(sizeof(int)*2);
int num = 0;
int count = 1;
for(int i = 0;i<arrayLen;i++)
{
num ^= array[i];
}
while((count&num) == 0)
{
count <<= 1;
}
int a = 0;
int b = 0;
for(int j=0; j<arrayLen; j++){
if((array[j]&count) != 0){
a ^= array[j];
}else{
b ^= array[j];
}
}
if(a > b){
int c = a;
a = b;
b = c;
}
nums[0]=a;
nums[1]=b;
*returnSize = 2;
return nums;
}
#个人随笔记##题解#
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