POJ 2234

于是我又机智的水了一篇=_=

//POJ-2234.cpp#include <cstdio>#include <cstring>#include <cmath>#include <cstdlib>#include <ctime>#include <climits>#include <cctype>#include <algorithm>#include <iostream>#include <string>#include <stack>#include <map>#include <set>#include <queue>#include <utility>#include <vector>#include <bitset>#include <functional>using namespace std;//const double pai = acos(-1.0);const double pai = 3.14159265358979323846;const int INF = 0x3f3f3f3f;typedef long long love_live;int main(int argc, char const *argv[]) {#ifndef ONLINE_JUDGE//freopen("output", "w", stdout);freopen("input", "r", stdin);#endifint n, m, i, j, k;while(scanf("%d", &n) != EOF){int ans = 0;for(i = 0; i < n; ++i){scanf("%d", &k);ans ^= k;}if(ans == 0){printf("No\n");}else{printf("Yes\n");}}return 0;}