Submission #2800870

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;

int main () {
int n; cin >> n; vector<int>v(n); for(int &b : v) cin >> b; int s = 0; for(int b : v) s ^= b; int sc = 0; for(int b : v) sc ^= (b - 1); if(s == 0) { cout << "0" << endl; } else if(sc == 0) { cout << n << endl; } else cout << "-1" << endl; }

Submission Info

Compile Error

./Main.cpp:1:10: fatal error: 'bits/stdc++.h' file not found
#include <bits/stdc++.h>
         ^
1 error generated.