解题思路:
注意事项:
参考代码:
n = int(input()) for i in range(n): ans=0 T=list(input()) S=list(input()) for j in range (1,len(S)-1): if T[j] != S[j]: if S[j-1] == S[j+1] and S[j] != S[j-1]: S[j]=S[j-1] ans+=1 else: continue if T==S: print(ans) else: print(-1)
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