HDOJ2095 ( find your present (2) ) 【异或运算】

 

Problem : 2095 ( find your present (2) )     Judge Status : Accepted
RunId : 6068462    Language : G++    Author : qq1203456195
Code Render Status : Rendered By HDOJ G++ Code Render Version 0.01 Beta

#include <stdio.h> int main() { int n,r,t; while (scanf("%d",&n),n) { r=0; while (n--) { scanf("%d",&t); r^=t; } printf("%d\n",r); } return 0; }

#include <stdio.h>
int main()
{
    int n,r,t;
    while (scanf("%d",&n),n)
    {
        r=0;
        while (n--)
        {
            scanf("%d",&t);
            r^=t;
        }
        printf("%d\n",r);
    }
    return 0;
}