13 lines
454 B
Python
13 lines
454 B
Python
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def permute_string(str):
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if len(str) == 0:
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return ['']
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prev_list = permute_string(str[1:len(str)])
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next_list = []
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for i in range(0,len(prev_list)):
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for j in range(0,len(str)):
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new_str = prev_list[i][0:j]+str[0]+prev_list[i][j:len(str)-1]
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if new_str not in next_list:
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next_list.append(new_str)
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return next_list
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print(permute_string('ABCD'));
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