Submission #845021

#	Time	Username	Problem	Language	Result	Execution time	Memory
845021		M_W_13	Football (info1cup20_football)	C++17	24 / 100	34 ms	3420 KiB

football

#include <iostream>

using namespace std;

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);
    int t;
    cin >> t;
    for (int i = 0; i < t; i++) {
        int n, k;
        cin >> n >> k;
        int log = 0;
        while (1 << log < k) {
            log++;
        }
        if (1 << log > k) {
            log--;
        }
        int klasy[n];
        int potegi[n][log + 1];
        for (int x = 0; x < n; x++) {
            cin >> klasy[x];
            for (int l = 0; l < log + 1; l++) {
                if (klasy[x] % (1 << l) == 0) {
                    potegi[x][l] = klasy[x]/(1 << l);
                }
                else {
                    potegi[x][l] = 0;
                }
            }
        }
        int suma;
        for (int l = 0; l < log + 1; l++) {
            suma = 0;
            for (int x = 0; x < n; x++) {
                suma += potegi[x][l];
            }
            if (suma % 2 == 1) {
                cout << "1";
                break;
            }
        }
        if (suma % 2 == 0) {
            cout << "0";
        }
    }
    return 0;
}

Compilation message (stderr)

football.cpp: In function 'int main()':
football.cpp:44:22: warning: 'suma' may be used uninitialized in this function [-Wmaybe-uninitialized]
   44 |         if (suma % 2 == 0) {
      |             ~~~~~~~~~^~~~

• Subtask 1: 0 / 26
• Subtask 2: 0 / 8
• Subtask 3: 0 / 11
• Subtask 4: 8 / 8
• Subtask 5: 16 / 16
• Subtask 6: 0 / 16
• Subtask 7: 0 / 7
• Subtask 8: 0 / 8