Lehmät

n, m = map(int, input().split())
cowmap = list()
cowcounter = 0
 
for i in range(n):
    cowmap.append([c for c in input()])
 
for row in cowmap:
    last_was_wall = False
    inside = False
    for ch in row:
        if ch == "*":
            if not last_was_wall:
                if inside:
                    inside = False
                    last_was_wall = True
                else:
                    inside = True
                    last_was_wall = False
            else:
                if inside:
                    last_was_wall == True
                else:
                    inside = True
                    last_was_wall = True
        elif ch == "@":
            if inside:
                cowcounter += 1
 
print(cowcounter)

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 1, 2

Verdict: ACCEPTED

Test 3

Group: 1, 2

Verdict: ACCEPTED

Test 4

Group: 1, 2

Verdict: WRONG ANSWER

Test 5

Group: 1, 2

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: WRONG ANSWER

Test 9

Group: 2

Verdict: WRONG ANSWER