Submission #847415

#	Time	Username	Problem	Language	Result	Execution time	Memory
847415		MinaRagy06	The Xana coup (BOI21_xanadu)	C++17	Compilation error	0 ms	0 KiB

xanadu

#include <bits/stdc++.h>
using namespace std;
typedef int64_t ll;

int main() {
    ios_base::sync_with_stdio(0), cin.tie(0);
    int n;
    cin >> n;
    for (int i = 1; i < n; i++) {
        int a, b;
        cin >> a >> b;
    }
    int a[n];
    for (int i = 0; i < n; i++) {
        cin >> a[i];
    }
    int cnt = 0;
    for (int i = 0; i < n; i++) {
        if (a[i] && i != 2 && n - 1 - i != 2) {
            cout << "impossible";
            return 0;
        }
        cnt += a[i];
    }
    cout << a[i] << '\n';
    return 0;
}

Compilation message (stderr)

xanadu.cpp: In function 'int main()':
xanadu.cpp:25:15: error: 'i' was not declared in this scope
   25 |     cout << a[i] << '\n';
      |               ^