#includeint find(int *p,int len ) { int i = 0; int ret = 0; for (i = 0; i < len; i++) { ret ^= p[i]; } return ret; } int main() { int arr[10] = { 10, 3, 3, 4, 4, 5, 5, 6, 6 }; int len = sizeof(arr) / sizeof(arr[0]); find(arr,len); printf("%d ", find(arr, len)); return 0;
