Ratsun reitit

// Ratsun_ralli.cpp : This file contains the 'main' function. Program execution begins and ends there.
//

#include <iostream>
#include <set>
#include <string>
#include <vector>
#include <queue>

using namespace std;

vector<vector<int>> calc_title(int n)
{
    

    // all possible leaps from a given position
    vector<vector<int>> legalJumps(8, vector<int> (2));
    legalJumps = { { {-2,-1}, {-2, 1}, {2, -1}, {2, 1}, {-1, -2}, {-1, 2}, {1, -2}, {1, 2} } };

    // creates the n*n board
    vector<vector<int>> board(n, vector<int> (n, 0));
    // set of already calculated moves
    set<vector<int>> done;
    // queue of moves to be calculated
    queue<vector<int>> TheQueue;

    // starting position
    vector<int> start{0, 0};
    done.insert(start);
    TheQueue.push(start);
    


    while (not TheQueue.empty()) 
    {

        vector<int> current = TheQueue.front();
        TheQueue.pop();
        int x = current[0];
        int y = current[1];
        // loops through possible moves
        for (const vector<int> jump : legalJumps)
        {
            int x0 = x + jump[0];
            int y0 = y + jump[1];
            // if the tile is on the board and hasn't been calculated yet
            if ((x0 >= 0) && (x0 < n) && (y0 >= 0) && (y0 < n) && (done.find(vector<int>{x0, y0}) == done.end()))
            {
                board[y0][x0] = board[y][x] + 1;
                done.insert(vector<int>{x0, y0});
                TheQueue.push(vector<int>{x0, y0});
            }

        }
    }
    return board;

}


int main()
{
    // gets the user input
    string temp;
    getline(cin, temp);
    int n = stoi(temp);

    vector<vector<int>> board = calc_title(n);
    for (const vector<int> row : board) 
    {
        for (const int tile : row)
        {
            cout << tile << " ";
        }
        cout << "\n";
    }
    
}

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

Test 7

Group: 1, 2, 3

Verdict: ACCEPTED

Test 8

Group: 2, 3

Verdict: ACCEPTED

Test 9

Group: 2, 3

Verdict: ACCEPTED

Test 10

Group: 2, 3

Verdict: ACCEPTED

Test 11

Group: 3

Verdict: ACCEPTED

Test 12

Group: 3

Verdict: ACCEPTED

Test 13

Group: 3

Verdict: ACCEPTED