Tontti

#include <iostream>
#include <string>
typedef long long ll;
using namespace std;

bool table[2000][2000] = {0};
ll sumtable[2000][2000] = {0};

int main() {
    ll height;
    ll width;
    ll trees;

    cin >> height;
    cin >> width;
    cin >> trees;

    string temps;

    for (ll q = 0; q < height; q++) {
        cin >> temps;
        for (ll i = 0; i < width; i++) {
            if (temps[i] == '*') {
                table[i][q] = true;
            }
        }
    }
    ll linesum;
    for (ll x = 0; x < width; x++) {
        linesum = 0;
        for (ll y = 0; y < height; y++) {
            linesum += table[x][y];
            sumtable[x][y] = linesum;
            if (x != 0) {
                sumtable[x][y] += sumtable[x-1][y];
            }
        }
    }
    ll res = 0;
    for (ll x = 0; x < width; x++) {
        for (ll y = 0; y < height; y++) {
            for (ll s = 1; s < min(width-x, height-y)+1; s++) {
                if (sumtable[x+s-1][y+s-1]-sumtable[x-1][y+s-1]-sumtable[x+s-1][y-1]+sumtable[x-1][y-1] == trees) {
                    res++;
                }
            }
        }
    }


    std::cout << res << std::endl;
    return 0;
}

Test 1

Group: 1

Verdict: RUNTIME ERROR

Test 2

Group: 1

Verdict: RUNTIME ERROR

Test 3

Group: 1

Verdict: RUNTIME ERROR

Test 4

Group: 1

Verdict: RUNTIME ERROR

Test 5

Group: 1

Verdict: RUNTIME ERROR

Test 6

Group: 2

Verdict: RUNTIME ERROR

Test 7

Group: 2

Verdict: RUNTIME ERROR

Test 8

Group: 2

Verdict: RUNTIME ERROR

Test 9

Group: 2

Verdict: RUNTIME ERROR

Test 10

Group: 2

Verdict: RUNTIME ERROR

Test 11

Group: 3

Verdict: RUNTIME ERROR

Test 12

Group: 3

Verdict: RUNTIME ERROR

Test 13

Group: 3

Verdict: RUNTIME ERROR

Test 14

Group: 3

Verdict: RUNTIME ERROR

Test 15

Group: 3

Verdict: RUNTIME ERROR