Submission #843696

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Source Code Expand

#include <cstdio>
using namespace std;

const int SIZE = 24 * 12 + 10;

// [00:00, 00:05), [00:05, 00:10), ..., [23:55, 24:00), [24:00, 24:05)
// の計12 * 24 + 1個
int segment[SIZE];

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

    for (int i = 0; i < n; i++) {
        int s, e;
        scanf("%d-%d", &s, &e);
        int h, m;
        h = s / 100; m = s % 100;
        m = (m / 5) * 5;     // 切り捨て
        segment[h * 12 + m / 5]++;

        h = e / 100; m = e % 100;
        m = ((m + 4) / 5) * 5;
        h += m / 60; m = m % 60;    // 切り上げ
        segment[h * 12 + m / 5]--;
    }

    // imos法
    for (int s_i = 1; s_i < SIZE; s_i++) {
        segment[s_i] += segment[s_i - 1];
    }

    int left = 0;
    while (left < SIZE) {
        int right = left + 1;
        if (segment[left] > 0) {
            while (right < SIZE && segment[right] > 0) {
                right++;
            }
            int lh, lm, rh, rm;
            lh = left / 12; lm = (left % 12) * 5;
            rh = right / 12; rm = (right % 12) * 5;
            printf("%02d%02d-%02d%02d\n", lh, lm, rh, rm);
        }
        left = right;
    }

    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:12:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
                    ^
./Main.cpp:16:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d-%d", &s, &e);
                               ^

Judge Result