Submission #1883326

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Source Code Expand

#include <iostream>
#include <string>
#include <sstream>
#include <algorithm>
#include <cmath>
#include <cstdlib>
#include <vector>
#include <queue>
#include <utility>
using namespace std;

typedef long long ll;
typedef pair<int, int> P;

#define For(i, a, b) for(int i = (a); i < (b); i++)
#define Rep(i, n) For(i, 0, (n))
#define Rrep(i, n) for(int i = (n - 1); i >= 0; i--)
#define pb push_back

const int inf = 999999999;
const int mod = 1000000007;
const int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1};

int a[1441];
vector<string> v;

int main(){
	int n; cin >> n;
	Rep(i, n){
		int x[2], y = 0;
		string s, t;
		stringstream ss; cin >> s;
		ss << s;
		while(getline(ss, t, '-')){
			x[y] = stoi(t);
			x[y] = x[y] % 100 + x[y] / 100 * 60;
			if(y){
				if(x[y] % 5 != 0){
					x[y] += 5 - (x[y] % 5);
				}
			}else{
				x[y] -= x[y] % 5;
			}
			y += 1;
		}
		a[x[0]] += 1; a[x[1]] -= 1;
	}
	bool flag = false; string x, y;
	For(i, 1, 1441) a[i] += a[i - 1];
	Rep(i, 1441){
		int k = i / 60 * 100 + i % 60;
		if(a[i] > 0){
			if(!flag){
				x = to_string(k);
				if(i < 10) x = "000" + x;
				else if(i < 60) x = "00" + x;
				else if(i < 600) x = "0" + x;
			}
			flag = true;
		}else{
			if(flag){
				y = to_string(k);
				if(i < 10) y = "000" + y;
				else if(i < 60) y = "00" + y;
				else if(i < 600) y = "0" + y;
				v.pb(x + "-" + y);
			}
			flag = false;
		}
	}
	if(flag) v.pb(x + "-" + y);
	Rep(i, v.size()){
		cout << v[i] << endl;
	}
	return 0;
}

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