alwaysBeAStarter

 1 #include <iostream>
 2 #include <math.h>
 3 #include <stdio.h>
 4 #include <cstdio>
 5 #include <algorithm>
 6 #include <string.h>
 7 #include <string>
 8 #include <sstream>
 9 #include <cstring>
10 #include <queue>
11 #include <vector>
12 #include <functional>
13 #include <cmath>
14 #include <set>
15 #define SCF(a) scanf("%d", &a)
16 #define IN(a) cin>>a
17 #define FOR(i, a, b) for(int i=a;i<b;i++)
18 #define Infinity 999999999
19 #define NInfinity -999999999
20 #define PI 3.14159265358979323846
21 #define MAXN 1000000005
22 #define RATIO (sqrt(5.0)+1.0)/2.0
23 typedef long long Int;
24 using namespace std;
25 
26 int main()
27 {
28     int N;
29     int nums[25];
30     while (SCF(N) != EOF)
31     {
32         FOR(i, 0, N)
33             SCF(nums[i]);
34         int ans = nums[0];
35         FOR(i, 1, N)
36         {
37             ans = ans^nums[i];
38         }
39         if (ans == 0)
40             printf("No\n");
41         else
42             printf("Yes\n");
43     }
44     return 0;
45 }