제출 #845154

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
845154		vjudge1	Datum (COCI20_datum)	C++17	50 / 50	299 ms	704 KiB

datum

#include <bits/stdc++.h>
using namespace std;
#define sp " "
#define endl "\n";
#define fastio() cin.tie(0), ios_base::sync_with_stdio(0)
#define pb push_back
#define pii pair<int, int>
#define st first
#define nd second
#define N 200005

const int modulo = 1e9 + 7;
vector<int> v = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
int steps = 0;

array<int, 3> palindrom(int y){
	vector<int> v;
	int tmp = y;
	for (int i = 0; i < 4; i++){
		v.pb(tmp % 10);
		tmp /= 10;
	}

	array<int, 3> date;
	date[0] = v[0] * 10 + v[1];
	date[1] = v[2] * 10 + v[3];
	date[2]= y;
	return date;
}

bool comp(array<int, 3> a, array<int, 3> b){
	reverse(a.begin(), a.end()), reverse(b.begin(), b.end());
	return a < b;
}

bool check(array<int, 3> &date){
	if (date[1] > 12 || date[1] == 0 || date[0] == 0) return 0;
	int lim = v[date[1] - 1];
	if (date[1] == 2 && date[2] % 4 == 0) lim = 29;
	if (date[0] > lim) return 0;
	return 1;
}

void print(array<int, 3> ans){
	cout<<(ans[0] < 10 ? "0" : "")<<ans[0]<<"."<<(ans[1] < 10 ? "0" : "")<<ans[1]<<".";
	if (ans[2] < 1000) cout<<"0";
	if (ans[2] < 100) cout<<"0";
	if (ans[2] < 10) cout<<"0";
	cout<<ans[2]<<"."<<endl;
}


int32_t main()
{
	fastio();

	int n;
	cin>>n;

	while(n--){
		string s;
		cin>>s;
		array<int, 3> date = {(s[0] - '0') * 10 + s[1] - '0', (s[3] - '0') * 10 + s[4] - '0', 
								(s[6] - '0') * 1000 + (s[7] - '0') * 100 + (s[8] - '0') * 10 + s[9] - '0'};
	
		for (int i = date[2]; i < 10000; i++){
			array<int, 3> curr = palindrom(i);
			if ((comp(date, curr)) && check(curr)){
				print(curr);
				break;
			}
		}
	}

	cerr << "time taken : " << (float)clock() / CLOCKS_PER_SEC << " seconds\n";
}

• Subtask 1: 50 / 50