Created
June 27, 2012 01:07
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Calculate all string permutation
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| def strperm(S): | |
| if not S: yield "" | |
| for c in S: | |
| for perm in strperm(S - set([c])): | |
| yield c + perm | |
| for s in strperm(set("abcd")): | |
| print s |
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