Submission #412564

#	Time	Username	Problem	Language	Result	Execution time	Memory
412564		LastRonin	Palindromes (APIO14_palindrome)	C++14	0 / 100	1088 ms	1236 KiB

palindrome

//#pragma GCC optimize("O3")
#include <bits/stdc++.h>
#define speed ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
#define ll long long
using namespace std;

const ll N = 1e5 + 10;

string a;
int main() {
	speed;
	cin >> a;
	int n = a.size();
	a = '#' + a;
	ll ans = 0;
	for(int i = 1; i <= n; i++) {
	    string b;
		for(int j = i; j <= n; j++) {
			b += a[j];
			if((j - i)%2)continue;
			bool can = 1;
			ll m = b.size();
			for(int l = 0; l < m; l++)
				if(b[l] != b[m - l - 1])can = 0;
			if(!can)continue;
			ll cnt = 0;
			for(int l = 1; l <= n - m + 1; l++) {
				string c = a.substr(l, m);
				if(c == b)
					cnt++;
			 }
			 ans = max(ans, cnt * m);
		}
	}
	cout << ans;
}

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