Submission #225591

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Source Code Expand

#include <iostream>
#include <cstdio>
#include <vector>
using namespace std;

// 一度単位を揃えてから処理
vector<int> R = vector<int>(2400, 0);

int main() {
  int N;
  scanf("%d", &N);
  for (auto i=0; i<N; i++) {
    int S, E;
    scanf("%d-%d", &S, &E);
    S = S/100 * 60 + S%100;
    S = S/5 *5;
    E = E/100 * 60 + E%100;
    E = (E+4)/5 * 5;
    R[S]++;
    R[E+1]--;
  }
  bool started = false;
  for (auto i=0; i<2400; i++) {
    if (i>0) R[i] += R[i-1];
    if (!started && R[i] > 0) {
      int k = (i/60)*100 + i%60;
      printf("%04d-", k);
      started = true;
    } else if (started && R[i] == 0) {
      int k = ((i-1)/60)*100 + (i-1)%60;
      printf("%04d\n", k);
      started = false;
    }
  }
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:11:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &N);
                  ^
./Main.cpp:14:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d-%d", &S, &E);
                           ^

Judge Result