dumbwaiter.py

def recurse(r, c, dishes):
    dishes[r][c] = " "
    # bottom
    if r < len(dishes)-1 and dishes[r+1][c] == "#":
        recurse(r+1, c, dishes)
    # top
    if r > 0 and dishes[r-1][c] == "#":
        recurse(r-1, c, dishes)
    # right
    if c < 9 and dishes[r][c+1] == "#":
        recurse(r, c+1, dishes)
    # left
    if c > 0 and dishes[r][c-1] == "#":
        recurse(r, c-1, dishes)

t = int(input())
for i in range(t):
    l = int(input())
    dishes = []
    for j in range(l):
        x = input().rstrip()
        row = list(x + (" "*(10-len(x))))
        dishes.append(row)
    
    count = 0
    
    for r in range(l):
        for c in range(10):
            if dishes[r][c] == "#":
                count = count + 1
                recurse(r, c, dishes)
                
    print(count)