Submission #1605157

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Source Code Expand

#include <limits.h>
#include <stdio.h>
static int n;
int abs(int a) {
    return a >= 0 ? a : -a;
}
int main(void) {
    int h, w, w_max, score, score_min = INT_MAX, h_min, w_min;
    scanf("%d", &n);
    for (h = 1; h <= 100000; ++h) {
        w_max = n / h;
        for (w = 1; w <= w_max; ++w) {
//            printf("h, w = %d, %d\n", h, w);
            score = abs(h - w) + (n - h * w);
            if (score < score_min) {
                score_min = score;
                h_min = h;
                w_min = w;
            }
        }
    }
//    printf("h_min, w_min, r = %d, %d, %d\n", h_min, w_min, n - h_min * w_min);
    printf("%d\n", score_min);
    return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:9:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ^

Judge Result