题解 | #寻找奇数#
寻找奇数
https://www.nowcoder.com/practice/849b9e545f4742398d278f5dc4e003d2
#include <stdio.h>
int main()
{
// a ^ a = 0;
// a ^ 0 = a;
int n = 0;
scanf("%d", &n);
int num = 0;
int sum = 0;
for (int i = 1; i <= n; i++)
{
scanf("%d", &num);
sum = sum ^ num;//出现偶数次的数异或后一定为0，最后剩下的数一定是出现奇数次的数
}
printf("%d\n", sum);
return 0;
}
