Submission #944470

#	Time	Username	Problem	Language	Result	Execution time	Memory
944470		Captain_Georgia	Football (info1cup20_football)	C++17	0 / 100	1 ms	600 KiB

football

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

#define file \
            freopen("in.txt" , "r" , stdin); \
            freopen("out.txt" , "w" , stdout);

typedef long long ll;

void test_case () {
    int n , k;
    cin >> n >> k;
    ll sum = 0;
    int a[n];
    for (int i = 0;i < n;i ++) {
        cin >> a[i];
    }
    for (int x = 1;x <= k;x *= 2) {
        sum = 0;
        for (int i = 0;i < n;i ++) {
            sum += (a[i] / x);
        }
        if (sum %2 != 0) {
            cout << "1";
            return;
        }
    }
    cout << "0";
}

int32_t main () {

     file
    int TIME = clock();

    int t = 1;
     cin >> t;

    while (t --) {
        test_case();
    }

    cerr << "\nTime elapsed: " << (clock() - TIME) * 1000.0 / CLOCKS_PER_SEC << " ms\n";

}

Compilation message (stderr)

football.cpp: In function 'int32_t main()':
football.cpp:5:20: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 |             freopen("in.txt" , "r" , stdin); \
      |             ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
football.cpp:33:6: note: in expansion of macro 'file'
   33 |      file
      |      ^~~~
football.cpp:6:20: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    6 |             freopen("out.txt" , "w" , stdout);
      |             ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
football.cpp:33:6: note: in expansion of macro 'file'
   33 |      file
      |      ^~~~

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