Submission #1800780

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Source Code Expand

#include <stdio.h>

int card[7] = {0, 1, 2, 3, 4, 5, 6};

void swap(int *a, int *b)
{
    int tmp = *a;
    *a = *b;
    *b = tmp;
}

int main(int argc, char const *argv[])
{
    int n;
    scanf("%d", &n);

    // 30回で1周するので
    n = n % 30;
    for (int i = 0; i < n; ++i) {
        int mod = i % 5;
        swap(&card[mod+1], &card[mod+2]);
    }

    for (int i = 1; i <= 6; ++i) {
        printf("%d", card[i]);
    }
    putchar('\n');
    return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:15:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ^

Judge Result