Submission #332236

#	Time	Username	Problem	Language	Result	Execution time	Memory
332236		evpipis	Football (info1cup20_football)	C++11	100 / 100	57 ms	2068 KiB

football

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

const int len = 1e5+5;
int arr[len];

int main(){
    int t;
    scanf("%d", &t);
    while (t--){
        int n, k;
        scanf("%d %d", &n, &k);
        for (int i = 0; i < n; i++)
            scanf("%d", &arr[i]);

        int ans = 0;
        for (int po = 1; po <= k; po*=2){
            int sum = 0;
            for (int i = 0; i < n; i++)
                sum ^= (arr[i]/po)%2;

            if (sum) ans = 1;
        }

        printf("%d", ans);
    }

    printf("\n");
    return 0;
}

Compilation message (stderr)

football.cpp: In function 'int main()':
football.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    9 |     scanf("%d", &t);
      |     ~~~~~^~~~~~~~~~
football.cpp:12:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   12 |         scanf("%d %d", &n, &k);
      |         ~~~~~^~~~~~~~~~~~~~~~~
football.cpp:14:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   14 |             scanf("%d", &arr[i]);
      |             ~~~~~^~~~~~~~~~~~~~~

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