Submission #2703100

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Source Code Expand

S = input()
ans = 0
if S.count('W') == 0 or S.count('B') == 0:
    print(0)
    exit()
a = S[0]
while True:
    for i, s in enumerate(S):
        if s != a: break
    S = S[i:]
    a = S[0]
    ans += 1
    if S.count('W') == 0 or S.count('B') == 0:break
print(ans)

Submission Info

Judge Result