Buggy python submission (verdict: Runtime Error):
#encoding:utf-8

import numpy as np
import sys
sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)



def count_answer(x,y,num_b,num_w):
    # print(used)

    if S[x][y] == "#":
        num_b += 1
    else:
        num_w += 1
    used[x][y] = 1
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1 or next_x >= H or next_y >= W:
            pass
        elif used[next_x,next_y] == 1:
            pass
        elif S[next_x][next_y] != S[x][y]:
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            continue
        num_b = 0
        num_w = 0
        if S[i,j] == "#":
            num_b,num_w  = count_answer(i,j,num_b,num_w)
            answer += num_b*num_w
print(answer)


Fixed submission:
#encoding:utf-8

import numpy as np
import sys
sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)


def count_answer(x,y,num_b,num_w):
    # print(used)

    if S[x][y] == "#":
        num_b += 1
    else:
        num_w += 1
    used[x][y] = 1
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1 or next_x >= H or next_y >= W:
            pass
        elif used[next_x,next_y] == 1:
            pass
        elif S[next_x][next_y] != S[x][y]:
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            continue
        num_b = 0
        num_w = 0
        if S[i][j] == "#":
            num_b,num_w  = count_answer(i,j,num_b,num_w)
            answer += num_b*num_w
print(answer)

Buggy python submission (verdict: Time Limit Exceeded):
#encoding:utf-8

import numpy as np
import sys
sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)

S_ = np.array(S)

def count_answer(x,y,num_b,num_w):
    # print(used)

    if S_[x][y] == "#":
        num_b += 1
    else:
        num_w += 1
    used[x][y] = 1
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1 or next_x >= H or next_y >= W:
            pass
        elif used[next_x,next_y] == 1:
            pass
        elif S_[next_x][next_y] != S_[x][y]:
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            continue
        num_b = 0
        num_w = 0
        if S_[i,j] == "#":
            num_b,num_w  = count_answer(i,j,num_b,num_w)
            answer += num_b*num_w
print(answer)


Fixed submission:
#encoding:utf-8

import numpy as np
import sys
sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)


def count_answer(x,y,num_b,num_w):
    # print(used)

    if S[x][y] == "#":
        num_b += 1
    else:
        num_w += 1
    used[x][y] = 1
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1 or next_x >= H or next_y >= W:
            pass
        elif used[next_x,next_y] == 1:
            pass
        elif S[next_x][next_y] != S[x][y]:
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            continue
        num_b = 0
        num_w = 0
        if S[i][j] == "#":
            num_b,num_w  = count_answer(i,j,num_b,num_w)
            answer += num_b*num_w
print(answer)

Buggy python submission (verdict: Time Limit Exceeded):
#encoding:utf-8

import numpy as np
import sys
sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)

S_ = np.array(S)

def count_answer(x,y,num_b,num_w):
    # print(used)
    # global num_b,num_w
    if S_[x][y] == "#":
        num_b += 1
    else:
        num_w += 1
    used[x][y] = 1
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1 or next_x >= H or next_y >= W:
            pass
        elif used[next_x,next_y] == 1:
            pass
        elif S_[next_x][next_y] != S_[x][y]:
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            continue
        num_b = 0
        num_w = 0
        if S_[i,j] == "#":
            num_b,num_w  = count_answer(i,j,num_b,num_w)
            answer += num_b*num_w
print(answer)


Fixed submission:
#encoding:utf-8

import numpy as np
import sys
sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)


def count_answer(x,y,num_b,num_w):
    # print(used)

    if S[x][y] == "#":
        num_b += 1
    else:
        num_w += 1
    used[x][y] = 1
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1 or next_x >= H or next_y >= W:
            pass
        elif used[next_x,next_y] == 1:
            pass
        elif S[next_x][next_y] != S[x][y]:
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            continue
        num_b = 0
        num_w = 0
        if S[i][j] == "#":
            num_b,num_w  = count_answer(i,j,num_b,num_w)
            answer += num_b*num_w
print(answer)

Buggy python submission (verdict: Runtime Error):
#encoding:utf-8

import numpy as np
# import sys
# sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)

S_ = np.array(S)

def count_answer(x,y,num_b,num_w):
    # print(used)
    # global num_b,num_w
    if S_[x][y] == "#":
        num_b += 1
    else:
        num_w += 1
    used[x][y] = 1
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1 or next_x >= H or next_y >= W:
            pass
        elif used[next_x,next_y] == 1:
            pass
        elif S_[next_x][next_y] != S_[x][y]:
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            continue
        num_b = 0
        num_w = 0
        if S_[i,j] == "#":
            num_b,num_w  = count_answer(i,j,num_b,num_w)
            answer += num_b*num_w
print(answer)


Fixed submission:
#encoding:utf-8

import numpy as np
import sys
sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)


def count_answer(x,y,num_b,num_w):
    # print(used)

    if S[x][y] == "#":
        num_b += 1
    else:
        num_w += 1
    used[x][y] = 1
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1 or next_x >= H or next_y >= W:
            pass
        elif used[next_x,next_y] == 1:
            pass
        elif S[next_x][next_y] != S[x][y]:
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            continue
        num_b = 0
        num_w = 0
        if S[i][j] == "#":
            num_b,num_w  = count_answer(i,j,num_b,num_w)
            answer += num_b*num_w
print(answer)

Buggy python submission (verdict: Runtime Error):
#encoding:utf-8

import numpy as np
# import sys
# sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)

S_ = np.array(S)

def count_answer(x,y,num_b,num_w):
    # print(used)
    # global num_b,num_w
    if S_[x][y] == "#":
        num_b += 1
    else:
        num_w += 1
    used[x][y] = 1
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1 or next_x >= H or next_y >= W or used[next_x,next_y] == 1:
            pass

        elif S_[next_x][next_y] != S_[x][y]:
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            continue
        num_b = 0
        num_w = 0
        num_b,num_w  = count_answer(i,j,num_b,num_w)
        answer += num_b*num_w
print(answer)


Fixed submission:
#encoding:utf-8

import numpy as np
import sys
sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)


def count_answer(x,y,num_b,num_w):
    # print(used)

    if S[x][y] == "#":
        num_b += 1
    else:
        num_w += 1
    used[x][y] = 1
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1 or next_x >= H or next_y >= W:
            pass
        elif used[next_x,next_y] == 1:
            pass
        elif S[next_x][next_y] != S[x][y]:
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            continue
        num_b = 0
        num_w = 0
        if S[i][j] == "#":
            num_b,num_w  = count_answer(i,j,num_b,num_w)
            answer += num_b*num_w
print(answer)

Buggy python submission (verdict: Runtime Error):
#encoding:utf-8

import numpy as np
# import sys
# sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)

S_ = np.array(S)

def count_answer(x,y,num_b,num_w):
    # print(used)
    # global num_b,num_w
    if S_[x][y] == "#":
        num_b += 1
    else:
        num_w += 1
    used[x][y] = 1
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1 or next_x >= H or next_y >= W or used[next_x,next_y] == 1:
            continue
        if S_[next_x][next_y] != S_[x][y]:
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            continue
        num_b = 0
        num_w = 0
        num_b,num_w  = count_answer(i,j,num_b,num_w)
        answer += num_b*num_w
print(answer)


Fixed submission:
#encoding:utf-8

import numpy as np
import sys
sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)


def count_answer(x,y,num_b,num_w):
    # print(used)

    if S[x][y] == "#":
        num_b += 1
    else:
        num_w += 1
    used[x][y] = 1
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1 or next_x >= H or next_y >= W:
            pass
        elif used[next_x,next_y] == 1:
            pass
        elif S[next_x][next_y] != S[x][y]:
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            continue
        num_b = 0
        num_w = 0
        if S[i][j] == "#":
            num_b,num_w  = count_answer(i,j,num_b,num_w)
            answer += num_b*num_w
print(answer)

Buggy python submission (verdict: Time Limit Exceeded):
#encoding:utf-8

import numpy as np
import sys
sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)

S_ = np.array(S)

def count_answer(x,y,num_b,num_w):
    # print(used)
    # global num_b,num_w
    count = 0
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)

        if next_x == -1 or next_y == -1:
            pass
        elif next_x >= H or next_y >= W:
            pass
        elif used[next_x][next_y] == 1:
            pass
        elif S_[next_x][next_y] != S_[x][y]:
            used[next_x][next_y] = 1
            if S_[next_x][next_y] == "#":
                num_b += 1
            else:
                num_w += 1
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            pass
        elif S_[i,j] == "#":
            num_b = 0
            num_w = 0
            num_b,num_w  = count_answer(i,j,num_b,num_w)
            answer += num_b*num_w
print(answer)


Fixed submission:
#encoding:utf-8

import numpy as np
import sys
sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)


def count_answer(x,y,num_b,num_w):
    # print(used)

    if S[x][y] == "#":
        num_b += 1
    else:
        num_w += 1
    used[x][y] = 1
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1 or next_x >= H or next_y >= W:
            pass
        elif used[next_x,next_y] == 1:
            pass
        elif S[next_x][next_y] != S[x][y]:
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            continue
        num_b = 0
        num_w = 0
        if S[i][j] == "#":
            num_b,num_w  = count_answer(i,j,num_b,num_w)
            answer += num_b*num_w
print(answer)

Buggy python submission (verdict: Runtime Error):
#encoding:utf-8

import numpy as np
import sys
sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)

S_ = np.array(S)

def count_answer(x,y,num_b,num_w):
    # print(used)
    # global num_b,num_w
    count = 0
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        used[next_x][next_y] = 1
        if next_x == -1 or next_y == -1:
            pass
        elif next_x >= H or next_y >= W:
            pass
        elif used[next_x][next_y] == 1:
            pass
        elif S_[next_x][next_y] != S_[x][y]:
            if S_[next_x][next_y] == "#":
                num_b += 1
            else:
                num_w += 1
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            pass
        elif S_[i,j] == "#":
            num_b = 0
            num_w = 0
            num_b,num_w  = count_answer(i,j,num_b,num_w)
            answer += num_b*num_w
print(answer)


Fixed submission:
#encoding:utf-8

import numpy as np
import sys
sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)


def count_answer(x,y,num_b,num_w):
    # print(used)

    if S[x][y] == "#":
        num_b += 1
    else:
        num_w += 1
    used[x][y] = 1
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1 or next_x >= H or next_y >= W:
            pass
        elif used[next_x,next_y] == 1:
            pass
        elif S[next_x][next_y] != S[x][y]:
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            continue
        num_b = 0
        num_w = 0
        if S[i][j] == "#":
            num_b,num_w  = count_answer(i,j,num_b,num_w)
            answer += num_b*num_w
print(answer)

Buggy python submission (verdict: Time Limit Exceeded):
#encoding:utf-8

import numpy as np
import sys
sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)

S_ = np.array(S)

def count_answer(x,y,num_b,num_w):
    # print(used)
    # global num_b,num_w
    count = 0
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1:
            pass
        elif next_x >= H or next_y >= W:
            pass
        elif used[next_x][next_y] == 1:
            pass
        elif S_[next_x][next_y] != S_[x][y]:
            used[next_x][next_y] = 1
            if S_[next_x][next_y] == "#":
                num_b += 1
            else:
                num_w += 1
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            pass
        elif S_[i,j] == "#":
            num_b = 0
            num_w = 0
            num_b,num_w  = count_answer(i,j,num_b,num_w)
            answer += num_b*num_w
print(answer)


Fixed submission:
#encoding:utf-8

import numpy as np
import sys
sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)


def count_answer(x,y,num_b,num_w):
    # print(used)

    if S[x][y] == "#":
        num_b += 1
    else:
        num_w += 1
    used[x][y] = 1
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1 or next_x >= H or next_y >= W:
            pass
        elif used[next_x,next_y] == 1:
            pass
        elif S[next_x][next_y] != S[x][y]:
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            continue
        num_b = 0
        num_w = 0
        if S[i][j] == "#":
            num_b,num_w  = count_answer(i,j,num_b,num_w)
            answer += num_b*num_w
print(answer)

Buggy python submission (verdict: Time Limit Exceeded):
#encoding:utf-8

import numpy as np
import sys
sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)

S_ = np.array(S)

memory = {}

def count_answer(x,y):
    count = 0
    actions = {0:[-1,0],1:[0,1],2:[1,0],3:[0,-1]}
    # print("x,y:",x,y)
    for action0 in range(4):
        next_x = x + actions[action0][0]
        next_y = y + actions[action0][1]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1:
            pass
        elif next_x >= H or next_y >= W:
            pass
        elif [next_x,next_y] in reach_position:
            pass
        elif S_[next_x,next_y] == ".":
            reach_position.append([next_x,next_y])
            for action in range(4):
                next_next_x = next_x +actions[action][0]
                next_next_y = next_y +actions[action][1]
                # print(next_next_x,next_next_y)
                if next_next_x == -1 or next_next_y == -1:
                    pass
                elif next_next_x >= H or next_next_y >= W:
                    pass
                elif S_[next_next_x,next_next_y] == "#":

                    memory_key = str(next_next_x)+str(next_next_y)
                    if memory_key in memory.keys():
                        tem_poss = memory[memory_key]
                    else:
                        tem_poss = count_answer(next_next_x,next_next_y)
                    for tem_pos in tem_poss:
                        if tem_pos in reach_position:
                            pass
                        else:
                            reach_position.append(tem_pos)
                    # reach_position = reach_position and tem_poss
    memory[str(x)+str(y)] = reach_position
    # memory[[x,y]] = reach_position
    return reach_position

answer = 0
for i in range(H):
    for j in range(W):
        if S_[i,j] == "#":
            reach_position = []
            reach_position = count_answer(i,j)
            answer += len(reach_position)
print(answer)


Fixed submission:
#encoding:utf-8

import numpy as np
import sys
sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)


def count_answer(x,y,num_b,num_w):
    # print(used)

    if S[x][y] == "#":
        num_b += 1
    else:
        num_w += 1
    used[x][y] = 1
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1 or next_x >= H or next_y >= W:
            pass
        elif used[next_x,next_y] == 1:
            pass
        elif S[next_x][next_y] != S[x][y]:
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            continue
        num_b = 0
        num_w = 0
        if S[i][j] == "#":
            num_b,num_w  = count_answer(i,j,num_b,num_w)
            answer += num_b*num_w
print(answer)

Buggy python submission (verdict: Time Limit Exceeded):
#encoding:utf-8

import numpy as np

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)

S_ = np.array(S)

memory = {}

def count_answer(x,y):
    count = 0
    actions = {0:[-1,0],1:[0,1],2:[1,0],3:[0,-1]}
    # print("x,y:",x,y)
    for action0 in range(4):
        next_x = x + actions[action0][0]
        next_y = y + actions[action0][1]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1:
            pass
        elif next_x >= H or next_y >= W:
            pass
        elif [next_x,next_y] in reach_position:
            pass
        elif S_[next_x,next_y] == ".":
            reach_position.append([next_x,next_y])
            for action in range(4):
                next_next_x = next_x +actions[action][0]
                next_next_y = next_y +actions[action][1]
                # print(next_next_x,next_next_y)
                if next_next_x == -1 or next_next_y == -1:
                    pass
                elif next_next_x >= H or next_next_y >= W:
                    pass
                elif S_[next_next_x,next_next_y] == "#":

                    memory_key = str(next_next_x)+str(next_next_y)
                    if memory_key in memory.keys():
                        tem_poss = memory[memory_key]
                    else:
                        tem_poss = count_answer(next_next_x,next_next_y)
                    for tem_pos in tem_poss:
                        if tem_pos in reach_position:
                            pass
                        else:
                            reach_position.append(tem_pos)
    memory[str(x)+str(y)] = reach_position
    # memory[[x,y]] = reach_position
    return reach_position

answer = 0
for i in range(H):
    for j in range(W):
        if S_[i,j] == "#":
            reach_position = []
            reach_position = count_answer(i,j)
            answer += len(reach_position)
print(answer)


Fixed submission:
#encoding:utf-8

import numpy as np
import sys
sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)


def count_answer(x,y,num_b,num_w):
    # print(used)

    if S[x][y] == "#":
        num_b += 1
    else:
        num_w += 1
    used[x][y] = 1
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1 or next_x >= H or next_y >= W:
            pass
        elif used[next_x,next_y] == 1:
            pass
        elif S[next_x][next_y] != S[x][y]:
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            continue
        num_b = 0
        num_w = 0
        if S[i][j] == "#":
            num_b,num_w  = count_answer(i,j,num_b,num_w)
            answer += num_b*num_w
print(answer)

Buggy python submission (verdict: Time Limit Exceeded):
#encoding:utf-8

import numpy as np

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)

S_ = np.array(S)

def count_answer(x,y):
    count = 0
    actions = {0:[-1,0],1:[0,1],2:[1,0],3:[0,-1]}
    # print("x,y:",x,y)
    for action0 in range(4):
        next_x = x + actions[action0][0]
        next_y = y + actions[action0][1]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1:
            pass
        elif next_x >= H or next_y >= W:
            pass
        elif [next_x,next_y] in reach_position:
            pass
        elif S_[next_x,next_y] == ".":
            reach_position.append([next_x,next_y])
            for action in range(4):
                next_next_x = next_x +actions[action][0]
                next_next_y = next_y +actions[action][1]
                # print(next_next_x,next_next_y)
                if next_next_x == -1 or next_next_y == -1:
                    pass
                elif next_next_x >= H or next_next_y >= W:
                    pass
                elif S_[next_next_x,next_next_y] == "#":
                    tem_poss = count_answer(next_next_x,next_next_y)
                    for tem_pos in tem_poss:
                        if tem_pos in reach_position:
                            pass
                        else:
                            reach_position.append(tem_pos)
    # memory[[x,y]] = reach_position
    return reach_position

answer = 0
for i in range(H):
    for j in range(W):
        if S_[i,j] == "#":
            reach_position = []
            reach_position = count_answer(i,j)
            answer += len(reach_position)
print(answer)


Fixed submission:
#encoding:utf-8

import numpy as np
import sys
sys.setrecursionlimit(1000000)

H, W = map(int, input().split())
S = []
for i in range(H):
    s = list(input())
    S.append(s)


def count_answer(x,y,num_b,num_w):
    # print(used)

    if S[x][y] == "#":
        num_b += 1
    else:
        num_w += 1
    used[x][y] = 1
    dx = [0,0,1,-1]
    dy = [1,-1,0,0]
    # print("x,y:",x,y)
    for i in range(4):
        next_x = x + dx[i]
        next_y = y + dy[i]
        # print(next_x,next_y)
        if next_x == -1 or next_y == -1 or next_x >= H or next_y >= W:
            pass
        elif used[next_x,next_y] == 1:
            pass
        elif S[next_x][next_y] != S[x][y]:
            num_b,num_w = count_answer(next_x,next_y,num_b,num_w)
    return num_b,num_w

answer = 0
used = np.zeros((H,W))
for i in range(H):
    for j in range(W):
        if used[i][j] == 1:
            continue
        num_b = 0
        num_w = 0
        if S[i][j] == "#":
            num_b,num_w  = count_answer(i,j,num_b,num_w)
            answer += num_b*num_w
print(answer)