oj.uz

Submission #465009

# Submission time Handle Problem Language Result Execution time Memory
465009 2021-08-14T20:28:09 Z myvaluska Difference (POI11_roz) C++14
0 / 100
 344 ms 2400 KB 
// palindromefree.cpp : This file contains the 'main' function. Program execution begins and ends there.
//

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
using namespace std;
//long long int cifra[20];
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n;
    cin >> n;
    string s;
    cin >> s;
    vector<vector<int>>mini(26, vector<int>(26, 1000000036));
    vector<vector<int>>prefix(26, vector<int>(26));
    vector<vector<int>>posledny(26, vector<int>(26));
    int vys = 0;
    for (int i = 0; i < n; i++)
    {
        int pismeno = s[i] - 'a';
        for (int j = 0; j < 26; j++)
        {
            if (s[i]-'a' == j)
            {

            }
            else
            {
                prefix[s[i] - 'a'][j] += 1;
                vys = max(vys, prefix[pismeno][j] - mini[pismeno][j]);
                prefix[j][pismeno] -= 1;
                mini[j][pismeno] = prefix[j][pismeno];
                vys = max(vys, prefix[j][pismeno] - mini[j][pismeno]);
            }
        }
    }
    /*for (int i = 0; i < 26; i++)
    {
        for (int j = 0; j < 26; j++)
        {
            cout << prefix[i][j];
            if (j < 25)
            {
                cout << ' ';
            }
            else
            {
                cout << endl;
            }
        }
    }*/
    cout << vys << endl;
    return 0;
    //std::cout << "Hello World!\n";
}

// Run program: Ctrl + F5 or Debug > Start Without Debugging menu
// Debug program: F5 or Debug > Start Debugging menu

// Tips for Getting Started: 
//   1. Use the Solution Explorer window to add/manage files
//   2. Use the Team Explorer window to connect to source control
//   3. Use the Output window to see build output and other messages
//   4. Use the Error List window to view errors
//   5. Go to Project > Add New Item to create new code files, or Project > Add Existing Item to add existing code files to the project
//   6. In the future, to open this project again, go to File > Open > Project and select the .sln file

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Incorrect 0 ms 204 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 316 KB Output is correct
2 Incorrect 1 ms 204 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 332 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 34 ms 588 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 337 ms 2388 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 333 ms 2384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 335 ms 2400 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 344 ms 2388 KB Output isn't correct
2 Halted 0 ms 0 KB -