Lehmät

split = input().split()

x = int(split[1])
y= int(split[0])

map_string = ""

for p in range(1, y, 1):
    map_string += input()
map_string += "*"*x

map_string = [*map_string.strip()]
counter = 0
inFence = False
cowCounter = 0
wallCount = 0

def flipState():
    global inFence
    if inFence:
        inFence = False
    else:
        inFence = True

#Iterate through all the values of the array
for yCounter in range(0,y,1):
    for xCounter in range(0,x,1):
        #Checks if iterating through pen wall, and skips accordingly
        if map_string[counter] == "*" and map_string[counter+1]=="*":
            #Making sure if no outline around pen
            if xCounter == x:
                flipState()
            else:
                yCounter +=1
                counter = yCounter*x
                wallCount +=1
                if(wallCount > 1):
                    break
        #Checks if current character is a wall and flips the state accordingly
        if map_string[counter-1] != "*" and map_string[counter] == "*" and map_string[counter+1] != "*":
            flipState()

        #Looks for cows
        if inFence and map_string[counter] == "@":
            cowCounter +=1

        counter += 1



print(cowCounter)

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 1, 2

Verdict: WRONG ANSWER

Test 3

Group: 1, 2

Verdict: ACCEPTED

Test 4

Group: 1, 2

Verdict: ACCEPTED

Test 5

Group: 1, 2

Verdict: WRONG ANSWER

Test 6

Group: 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: ACCEPTED