Submission #255231

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Source Code Expand

#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <iostream>
#include <set>
#include <sstream>
#include <utility>
#include <map>
#include <vector>
#include <queue>
#include <algorithm>
 
using namespace std;
 
void inline conv1 (int& m) {
  m = m/5 * 5;
}
 
void inline conv2 (int& h, int& m) {
  m = ceil((float)m/5) * 5;
  if (m == 60) {
    h += 1;
    m = 0;
  }
}
 
int inline HM2min (int h, int m) {
  return h * 60 + m;
}
 
int inline HH (int hhmm ) {
  return hhmm / 100;
}
 
int inline MM (int hhmm ) {
  return hhmm - HH(hhmm)*100;
}
 
int inline min2HM (int min) {
  return min/60 *100 + min%60;
}
 
int main(int argc, char *argv[])
{
  int N;
 
  cin >> N;
  int start,end; // HHMM
  int dayMin = 60*24 + 1; // 00:00 ~ 24:00
  int range[dayMin+2]; // IMOSU method
  memset(range,0,(dayMin+2)*sizeof(int));
 
  for ( int i = 0 ; i <  N ; i++ ) {
    int sH,sM,eH,eM;
    scanf("%4d%*c%4d%*c",&start,&end);
    sH = HH(start);
    sM = MM(start);
    conv1(sM);
 
    eH = HH(end);
    eM = MM(end);
    conv2(eH,eM);
 
    range[HM2min(sH,sM)  ] += 1;
    range[HM2min(eH,eM)+1] -= 1;
 
  }
 
  bool flag = true;
  for ( int i = 0 ; i <=  dayMin ; i++ ) {
    range[i+1] += range[i];
    //printf("%2d %04d %04d\n",i,range[i],min2HM(i));
    if (range[i]>0 && flag) {
      printf("%04d-",min2HM(i));
      flag = false;
    }
    else if (range[i]<=0 && !flag) {
      printf("%04d\n",min2HM(i-1));
      flag = true;
    }
  }
 
  return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main(int, char**)’:
./Main.cpp:56:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result