Tontti

#include <iostream>
#include <math.h>

using namespace std;

#define ull unsigned long long

int main() {
    cin.sync_with_stdio(false);
    int i, j, n, m, k, x, s, sz, q, w, b;
    cin >> n >> m >> k;
    char input[n][m];
    int a[n][m];
    for (i = 0; i < n; i++)
        cin >> input[i];
    sz = (int)ceil(sqrt((double)k));
    for (i = 0; i < n; i++)
        for (j = 0; j < m; j++) {
            a[i][j] = !(input[i][j]=='.');
            if(sz==1)
                sz += (k>1?(k==1?a[i][j]:1-a[i][j]):0);
        }
    x = b = 0;
    for (s = max(sz,2); s <= min(n,m); s++) {
        for (i = 0; i <= n-s; i++)
            for (j = 0; j <= m-s; j++) {
                int t = 0;
                for (q = i; q < i+s; q++) {
                    for (w = j; w < j+s; w++) {
                        t += a[q][w];
                        if (t > k) {
                            b = 1;
                            break;
                        }
                    }
                    if(b) break;
                }
                b = 0;
                if (t == k) x++;
            }
    }
    cout << x << "\n";
    return 0;
}

Test 1

Group: 1

Verdict: WRONG ANSWER

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: TIME LIMIT EXCEEDED

Test 7

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 8

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 9

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 10

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 11

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 12

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 13

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 14

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 15

Group: 3

Verdict: TIME LIMIT EXCEEDED