Submission #782054

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Source Code Expand

#include <iomanip>
#include <iostream>
#include <map>

using namespace std;

int round_f (int t) {
  int r = t % 10;
  if (0 < r && r < 5) {
    t -= r;
  } else if (r > 5) {
    t -= (r-5);
  }
  return t;
}

int round_t (int t) {
  int r = t % 10;
  if (0 < r && r < 5) {
    t += (5-r);
  } else if (r > 5) {
    t += (10-r);
  }

  if (t % 100 == 60) {
    t = (t/100+1)*100;
  }
  return t;
}

int main(int argc, char* argv[]) {
  int N; 
  cin >> N;

  map<int, int> table;
  for (int i = 0; i < N; i++) {
    string str;
    cin >> str;
    int f = round_f(stoi(str.substr(0, 4)));
    int t = round_t(stoi(str.substr(5, 4)));

    if (table.find(f) == table.end()) {
      table[f] = t;
    } else {
      table[f] = max(t, table[f]);
    }
  }

  map<int, int> day;
  map<int, int>::iterator itr = table.begin();
  int f, t;
  f = t = -1;
  while (itr != table.end()) {
    if (f == -1 && t == -1) {
      f = itr->first;
      t = itr->second;
    } else if (itr->first <= t) {
      t = max(t, itr->second); 
    } else {
      day.insert(pair<int, int>(f, t));
      f = itr->first;
      t = itr->second;
    }
    itr++;
  }

  if (f != -1 && t != -1) {
    day.insert(pair<int, int>(f, t));
  }

  for (map<int, int>::iterator itr = day.begin();
       itr != day.end(); itr++) {
    cout << setfill('0') << setw(4) << itr->first;
    cout << '-';
    cout << setfill('0') << setw(4) << itr->second;
    cout << endl;
  }
  return 0;
}

Submission Info

Judge Result