Submission #1481705

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Source Code Expand

#include <stdio.h>
#include <string.h>
static char s[101], lr[100];
static int n, ir = 50, il = 49, len = 1;
int main(void) {
    int i = 1;
    scanf("%d%s", &n, s);
    lr[ir++] = 'b';
    while (len < n) {
        switch (i % 3) {
        case 1:
            lr[il--] = 'a';
            lr[ir++] = 'c';
            break;
        case 2:
            lr[il--] = 'c';
            lr[ir++] = 'a';
            break;
        default:
            lr[il--] = 'b';
            lr[ir++] = 'b';
            break;
        }
        len += 2;
        ++i;
    }
    if (strcmp(s, lr + il + 1)) puts("-1");
    else printf("%d\n", n / 2);
    return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:7:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%s", &n, s);
     ^

Judge Result