Submission #1024674

#	Time	Username	Problem	Language	Result	Execution time	Memory
1024674		Gangsta	Palinilap (COI16_palinilap)	C++14	17 / 100	1040 ms	600 KiB

palinilap

#include "bits/stdc++.h"
#define ll long long int
#define pb push_back
#define pii pair<int,int>
#define ff first
#define ss second
#define sz size()

const int N = 2e5 + 1;

using namespace std;

ll ans, mx;

void f(string s){
    for(int i = 0; i < (int)s.sz; i++){
        int nd = i, nd1 = i;
        while(nd >= 0 and nd1 < (int)s.sz and s[nd] == s[nd1]){
            ans++;
            nd--;
            nd1++;
        }
    }
    for(int i = 0; i < (int)s.sz-1; i++){
        int nd = i, nd1 = i+1;
        while(nd >= 0 and nd1 < (int)s.sz and s[nd] == s[nd1]){
            ans++;
            nd--;
            nd1++;
        }
    }
}

int main(){
    ios::sync_with_stdio(false); cin.tie(nullptr);
    //freopen("input.in", "r", stdin);
    //freopen("output.out", "w", stdout);
    string s1,s2;
    cin >> s1;
    s2 = s1;
    for(int i = 0; i < (int)s1.sz; i++){
        for(char j = 'a'; j <= 'z'; j++){
            ans = 0;
            s2[i] = j;
            f(s2);
            s2[i] = s1[i];
            mx = max(mx,ans);
        }
    }
    cout << mx;
}

• Subtask 1: 17 / 17
• Subtask 2: 0 / 37
• Subtask 3: 0 / 46