Tontti

public class Main {

	public static void main(String[] args) {
		IO io = new IO();
		
		int n = io.nextInt();
		int m = io.nextInt();
		int x = io.nextInt();
		
		int[][] metsa = new int[n][m];
		
		for (int i = 0; i < n; i++) {
			String rivi = io.next();
			for (int j = 0; j < rivi.length(); j++) {
				metsa[i][j] = rivi.charAt(j) == '*' ? 1 : 0;
			}
		}
		
		int laskuri = 0;
		
		for (int h = 0; h < n; h++) {
			for (int w = 0; w < m; w++) {
				int max = Math.min(n - h, m - w);
				int summa = 0;
				for (int i = 0; i < max; i++) {
					for (int j = 0; j <= i; j++) {
						summa += metsa[h+i][w+j];
						summa += metsa[h+j][w+i];
					}
					summa -= metsa[h+i][w+i];
					if(summa == x) laskuri++;
					else if(summa > x) break;
				}
				
			}
		}
		
		io.print(laskuri);
		
		io.close();
	}

}

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: 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