1 def quchong(S): 2 str1=[""] 3 for i in S: 4 if i == str1[-1]: 5 str1.pop() 6 else: 7 str1.append(i) 8 print(''.join(str1)) 9 quchong("daaba") 10 quchong("bbaca")
1 dba 2 aca
1 def quchong(S): 2 str1=[""] 3 for i in S: 4 if i == str1[-1]: 5 str1.pop() 6 else: 7 str1.append(i) 8 print(''.join(str1)) 9 quchong("daaba") 10 quchong("bbaca")
1 dba 2 aca
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