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#