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Submission #237630

# Submission time Handle Problem Language Result Execution time Memory
237630 2020-06-07T22:57:39 Z akat Datum (COCI20_datum) C++14
50 / 50
 18 ms 512 KB 
#include<bits/stdc++.h>
using namespace std;
int get(string &s,int i,int n)
{
	int ans = 0;
	for(;i<n;i++)
		ans = ans * 10 + s[i] - '0';
	return ans;
}
int rev(int x)
{
	return (x % 10) * 10 + x / 10;
}
const int MONTHS = 12;
int month_len[MONTHS+1] = {-1,31,29,31,30,31,30,31,31,30,31,30,31};
void print(int x,int len)
{
	int y = x;
	while(y)
	{
		y /= 10;
		len--;
	}
	while(len--)
		cout<<0;
	cout<<x<<'.';
}
void solve()
{
	string s;
	cin>>s;
	int day = get(s,0,2);
	int month = get(s,3,5);
	int year = get(s,6,10);
	int palmonth = (year % 1000) / 100 * 10 + year / 1000;
	int palday = (year % 10) * 10 + (year % 100) / 10;
	if(palmonth > month || (palmonth == month && palday > day))year--;
	int ansday,ansmonth,ansyear=1e4;
	int cday,cmonth,cyear;
	for(cmonth = 1;cmonth < 13;cmonth++)
		for(cday = 1;cday <= month_len[cmonth];cday++)
		{
			cyear = rev(cmonth) * 100 + rev(cday);
			if(cyear < ansyear && cyear > year)
			{
				ansyear = cyear;
				ansmonth = cmonth;
				ansday = cday;
			}
		}
	print(ansday,2);
	print(ansmonth,2);
	print(ansyear,4);
	cout<<'\n';
}
int main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int t;
	cin>>t;
	while(t--)
		solve();
}

Compilation message

datum.cpp: In function 'void solve()':
datum.cpp:52:7: warning: 'ansmonth' may be used uninitialized in this function [-Wmaybe-uninitialized]
  print(ansmonth,2);
  ~~~~~^~~~~~~~~~~~
datum.cpp:51:7: warning: 'ansday' may be used uninitialized in this function [-Wmaybe-uninitialized]
  print(ansday,2);
  ~~~~~^~~~~~~~~~

Subtask #1
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 18 ms 512 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 5 ms 512 KB Output is correct
10 Correct 18 ms 512 KB Output is correct