Submission #403698

#	Time	Username	Problem	Language	Result	Execution time	Memory
403698		opukittpceno_hhr	Palindromes (APIO14_palindrome)	C++17	23 / 100	1092 ms	131076 KiB

palindrome

#include <iostream>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <algorithm>
#include <string>
#include <cmath>
#include <cstdio>
#include <iomanip>
#include <fstream>
#include <cassert>
#include <cstring>
#include <unordered_set>
#include <unordered_map>
#include <numeric>
#include <ctime>
#include <bitset>
#include <complex>
#include <chrono>
#include <random>
#include <functional>

using namespace std;

int pal(string s) {
    string t = s;
    reverse(t.begin(), t.end());
    return s == t;
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    string s;
    cin >> s;
    int n = (int)s.size();
    map<string, int> cnt;
    int ans = 0;
    for (int i = 0; i < n; i++) {
        for (int j = i; j < n; j++) {
            string ts = s.substr(i, j - i + 1);
            if (pal(ts)) {
                cnt[ts]++;
                ans = max(ans, cnt[ts] * (j - i + 1));
            }
        }
    }
    cout << ans << endl;
}

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