Niitty

input/code.cpp: In function 'int main()':
input/code.cpp:20:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |     for (int i=0; i < size(v); i++) {
      |                   ~~^~~~~~~~~
input/code.cpp:21:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |         for (int j=0; j< size(v); j++) {
      |                       ~^~~~~~~~~
input/code.cpp:36:43: warning: comparison of integer expressions of different signedness: 'std::unordered_set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   36 |                             if (us.size() == sl) {
      |                                 ~~~~~~~~~~^~~~~
input/code.cpp:17:28: warning: unused variable 'slt' [-Wunused-variable]
   17 |     int n=4, sx, sy, sl=0, slt=0...

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef vector<int> vi;

#define F first
#define S second
#define PB push_back
#define MP make_pair
#define FOR(i,a,b) for (ll i = a; i < b; i++)


int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n=4, sx, sy, sl=0, slt=0, c=0;
    unordered_set<int> us;
    vector<vector<char>> v = {{'A', 'A', 'A', 'K'}, {'A', 'B', 'A', 'A'}, {'A', 'B', 'A', 'A'}, {'A', 'A', 'A', 'A'}};
    for (int i=0; i < size(v); i++) {
        for (int j=0; j< size(v); j++) {
            us.insert(v[i][j]);
        }
    }
    sl = us.size();
    us.clear();
    sx = 4;
    sy = 4;
    for (int i=sx; i>0; i--) {
        for (int j=sy; j>0; j--) {
            for (int k=0; k<=n-i; k++) {
                for (int l=0; l<=n-j; l++) {
                    for (int m=k; m<i; m++) {
                        for (int o=l; o<j; o++) {
                            us.insert(v[m][o]);
                            if (us.size() == sl) {
                                c++;
                                goto exit;
                            }
                        }
                        goto exitfull;
                    }
                    exit:
                    us.clear();
                }
            }
        }
    }
    exitfull:
    cout << c;

}

Test 1

Group: 1, 2, 3, 4, 5, 6

Verdict: WRONG ANSWER

Test 2

Group: 1, 2, 3, 4, 5, 6

Verdict: WRONG ANSWER

Test 3

Group: 1, 2, 3, 4, 5, 6

Verdict: WRONG ANSWER

Test 4

Group: 1, 2, 3, 4, 5, 6

Verdict: WRONG ANSWER

Test 5

Group: 1, 2, 3, 4, 5, 6

Verdict: WRONG ANSWER

Test 6

Group: 2, 3, 4, 5, 6

Verdict: WRONG ANSWER

Test 7

Group: 2, 3, 4, 5, 6

Verdict: WRONG ANSWER

Test 8

Group: 2, 3, 4, 5, 6

Verdict: WRONG ANSWER

Test 9

Group: 2, 3, 4, 5, 6

Verdict: WRONG ANSWER

Test 10

Group: 3, 4, 5, 6

Verdict: WRONG ANSWER

Test 11

Group: 3, 4, 5, 6

Verdict: WRONG ANSWER

Test 12

Group: 3, 4, 5, 6

Verdict: WRONG ANSWER

Test 13

Group: 3, 4, 5, 6

Verdict: WRONG ANSWER

Test 14

Group: 4, 5, 6

Verdict: WRONG ANSWER

Test 15

Group: 4, 5, 6

Verdict: WRONG ANSWER

Test 16

Group: 4, 5, 6

Verdict: WRONG ANSWER

Test 17

Group: 4, 5, 6

Verdict: WRONG ANSWER

Test 18

Group: 5, 6

Verdict: WRONG ANSWER

Test 19

Group: 5, 6

Verdict: WRONG ANSWER

Test 20

Group: 5, 6

Verdict: WRONG ANSWER

Test 21

Group: 5, 6

Verdict: WRONG ANSWER

Test 22

Group: 6

Verdict: WRONG ANSWER

Test 23

Group: 6

Verdict: WRONG ANSWER

Test 24

Group: 6

Verdict: WRONG ANSWER

Test 25

Group: 6

Verdict: WRONG ANSWER