Vaihdot

input/code.cpp: In function 'int main()':
input/code.cpp:22:13: warning: 'i' may be used uninitialized in this function [-Wmaybe-uninitialized]
     for(int i; i < n; i++)
             ^
input/code.cpp:30:13: warning: 'i' may be used uninitialized in this function [-Wmaybe-uninitialized]
     for(int i; i < n; i++)
             ^

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

struct OP
{
    int a, b, c;
};

int main()
{
    int a[500][500];
    int b[500][500];
    
    int n, ops = 0;
    vector<OP> oper;
    
    cin >> n;
    
    for(int i; i < n; i++)
    {
        for(int j = 0; j < n; j++)
        {
            cin >> a[i][j];
        }
    }
        
    for(int i; i < n; i++)
    {
        for(int j = 0; j < n; j++)
        {
            cin >> b[i][j];
        }
    }
        
    for(int i = 0; i < n; i++)
    {
        bool br = 0;
        int cor = b[i][i];
        
        for(int x = i; x < n; x++)
        {
            for(int y = i; y < n; y++)
            {
                if(a[y][x] == cor)
                {
                  br = 1;
                  if(i != y)
                  {
                    ops++;
                    //row 1 i y
                    oper.push_back({1, i + 1, y + 1});
                    swap(a[i], a[y]);
                  }
                  if(i != x)
                  {
                    ops++;
                    //col 2 i x
                    oper.push_back({2, i + 1, x + 1});
                    for(int x0 = 0; x0 < n; x0++)
                    {
                        swap(a[x0][i], a[x0][x]);
                    }
                  }

                  break;
                }
            }
            if(br) break;
        }
        
        if(!br)
        {
            cout << -1;
            return 0;
        }
        
        
        
    }
    
    for(int x = 0; x < n; x++)
    {
        for(int y = 0; y < n; y++)
        {
            if(a[x][y] != b[x][y])
            {
                cout << -1;
                return 0;
            }
        }
    }
    
    cout << ops << '\n';
    for(OP o : oper)
    {
        cout << o.a << " " << o.b << " " << o.c << '\n';
    }
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 1

Verdict: ACCEPTED

Test 3

Group: 1

Verdict: ACCEPTED

Test 4

Group: 1

Verdict: ACCEPTED

Test 5

Group: 1

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: ACCEPTED

Test 10

Group: 2

Verdict: ACCEPTED

Test 11

Group: 3

Verdict: ACCEPTED

Test 12

Group: 3

Verdict: ACCEPTED

Test 13

Group: 3

Verdict: ACCEPTED

Test 14

Group: 3

Verdict: ACCEPTED

Test 15

Group: 3

Verdict: ACCEPTED