Submission #74105

#	Time	Username	Problem	Language	Result	Execution time	Memory
74105		charlies_moo	Prosjecni (COCI16_prosjecni)	C++17	120 / 120	4 ms	504 KiB

prosjecni

#include <cstdio>

int main() {
    int n;
    scanf("%d", &n);

    if (n == 2) {
        printf("-1\n");
    } else if (n % 2 == 1) {
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                printf("%d%c", i*n+j+1, j==n-1 ? '\n' : ' ');
            }
        }
    } else {
        int k = n / 2;
        for (int i = 0; i < n - 1; i++) {
            for (int j = 0; j < n - 1; j++) {
                printf("%d ", 3*k*i+j+1);
            }
            printf("%d\n", 3*k*(i+1));
        }
        for (int j = 0; j < n - 1; j++) {
            printf("%d ", 9*k*k-3*k+j+1);
        }
        printf("%d\n", 9*k*k);
    }

    return 0;
}

Compilation message (stderr)

prosjecni.cpp: In function 'int main()':
prosjecni.cpp:5:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~

• Subtask 1: 120 / 120