Submission #1119458

#	Time	Username	Problem	Language	Result	Execution time	Memory
1119458		vjudge1	Palindromes (APIO14_palindrome)	C++17	23 / 100	1077 ms	131072 KiB

palindrome

// made by Tima
// 2025 will be a golden year...
#include "bits/stdc++.h"
#include <ext/pb_ds/assoc_container.hpp>
#define ll long long
#define pb push_back
#define pf push_front
#define ppb pop_back
#define ppf pop_front
#define int long long
#define F first
#define S second
#define all(x) (x).begin(), (x).end()
#define pii pair<int,int>
#define tpii pair <pair <int,int> , int>
#define bruh cout << "NO\n"
using namespace std;
using namespace __gnu_pbds;
const int N = 3e5 + 5;
int mod = 1e9 + 7;
const int INF = 1e18;
int n;
string s;
void Gold(){
	cin >> s;
	s = '=' + s;
	n = s.size() - 1;
	int ans = 0;
	map <string , int> mp;
	for(int i = 1 ; i <= n ; i++){
		string cur = "";
		for(int j = i ; j <= n ; j++){
			cur.pb(s[j]);
			int l = i , r = j;
			bool oknt = 0;
			while(l < r){
				if(s[l] != s[r]){
					oknt = 1;
					break;
				}
				l++;
				r--;
			}
			if(!oknt){
				mp[cur]++;
			}
		}
	}
	for(auto it : mp){
		ans = max(ans , (ll)it.S * (ll)(it.F).size());
	}
	cout << ans;
}
//https://codeforces.com/blog/entry/133289
signed main(/*Zhunussov Temirlan*/){
	//freopen("txt.in","r",stdin);freopen("txt.out","w",stdout);
	ios_base::sync_with_stdio(0);cin.tie(0);
	srand(time(0));
	int TT = 1;
	// cin >> TT;
	for(int i = 1 ; i <= TT ; i++){
		//cout << "Case " << i << ": ";
		Gold();
	}
}

• Subtask 1: 8 / 8
• Subtask 2: 15 / 15
• Subtask 3: 0 / 24
• Subtask 4: 0 / 26
• Subtask 5: 0 / 27