Tontti

#!/usr/bin/env python
# -*- coding: utf-8 -*-

from sys import stdin

def readline():
    return stdin.readline().strip()

def get_vars():
    global n, m, x
    row1 = readline().split(' ')
    n = int(row1[0]) # Korkeus
    m = int(row1[1]) # Leveys
    x = int(row1[2]) # Tavoite
get_vars()

def isqrt(n):
    x = n
    y = (x + 1) // 2
    while y < x:
        x = y
        y = (x + n // x) // 2
    return x


def run():
    metsa = []
    for i in range(n):
        row = readline()
        arr = []
        for char in row:
            if char == '*':
                arr.append(True)
            else:
                arr.append(False)
        metsa.append(arr)
        
    vaihtoehtoja = 0

    sqrt_x = isqrt(x)
    
    for x1 in xrange(n-sqrt_x):
        for y1 in xrange(m-sqrt_x):
            for w in xrange(1, min(n-x1+1, m-y1+1)):
                if w ** 2 >= x:
                    val = 0
                    for x2 in xrange(x1, x1+w):
                        for y2 in xrange(y1, y1+w):
                            if metsa[x2][y2]:
                                val += 1
                    if val == x:
                        vaihtoehtoja += 1
    print(vaihtoehtoja)
run()

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