Tontti

import java.util.ArrayList;
 
public class Main {
 
    private static int hits;
 
    public static void main(String[] args) {
        IO io = new IO();
        int height = io.nextInt();
        int width = io.nextInt();
        int trees = io.nextInt();
        hits = 0;
 
        ArrayList<String> woods = new ArrayList<>();
 
        for (int i = 0; i < height; i++) {
            woods.add(io.next());
        }
        int smallest = height;
        if (height > width) {
            smallest = width;
        }
 
        iterateThroughAllSquares(width, height, smallest, woods, trees);
 
        io.println(hits);
        io.close();
    }
 
    private static void searchSquare(int startx, int starty, int size, ArrayList<String> woods, int trees) {
        int temphits = 0;
/*        for (int j = starty; j < f1; j++) {
            for (int i = startx; i < f2; i++) {
                System.out.print(woods.get(j).charAt(i));
                if (woods.get(j).charAt(i) == '*') {
                    temphits++;
                }
          }
            System.out.println("");
        }
        System.out.println("------------");
        if (temphits == trees) {
            hits++;
        }
        size--;
        if (temphits >= trees && size*size >= trees) {
 
        }
        size--;
        if (temphits >= trees && size*size >= trees) {
            for (int i = 0; i <= woods.size()-size-starty; i++) {
                searchSquare(startx, starty+i, size, woods, trees);
            }
        }*/
 
 
        int foundTrees = 0;
        for (int i = 1; i <= size; i++) {
            if(foundTrees<=trees) {
                foundTrees = checkSquare(startx,starty,i,woods,trees,foundTrees);
            } else {
                break;
            }
        }
        //skip the check of unrealistically small squares, if needed
    //in this function, the grid starts from 0,0 in the left upper corner
    /*private static void iterate2(int width, int height, int size, ArrayList<String> woods, int trees) {
      /*  int temphits = 0;
        for (int i = height; i <= woods.size()-size; i++) {
 
        }*/
    }
    private static int checkSquare(int startx, int starty, int size, ArrayList<String> woods, int trees, int foundTrees) {
        for (int i = 0; i < size-1; i++) {
            if (woods.get(size-1).charAt(i)=='*') {
                foundTrees++;
            }
        }
        for (int i = 0; i < size; i++) {
            if (woods.get(i).charAt(size-1)=='*') {
                foundTrees++;
            }
        }
        if (foundTrees==trees) {
            hits++;
        }
        return foundTrees;
    }
    private static void iterateThroughAllSquares(int width, int height, int size, ArrayList<String> woods, int trees) {
        for (int i = 0; i <= width-size; i++) {
            for (int j = 0; j <= height-size; i++) {
                searchSquare(i,j,size,woods,trees);
            }
        }
 
 
 
 
 
        /*for (int i = 0; i <= width - size; i++) {
            for (int j = 0; j <= height - size; j++) {
                int temphits = searchSquare(i, j, size, woods, trees);
                if (height < width) {
                    iterate2(i,0,size-1,woods,trees);
                }
            }
        }*/
 
        //if higher than wider: diff function. Iterate through only the top or left side of the square and only if there
        //are enough potential trees
 
        // no need for if??, just stick them in different parts of the for loop
 
 
        /*size--;
        if (Math.pow(size, 2) >= trees) {
            iterateThroughAllSquares(width, height, size, woods, trees);
        }*/
    }
 
 
}

Test 1

Group: 1

Verdict: TIME LIMIT EXCEEDED

Test 2

Group: 1

Verdict: TIME LIMIT EXCEEDED

Test 3

Group: 1

Verdict: TIME LIMIT EXCEEDED

Test 4

Group: 1

Verdict: TIME LIMIT EXCEEDED

Test 5

Group: 1

Verdict: TIME LIMIT EXCEEDED

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