Created
June 4, 2013 21:43
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Subset Sum DFS
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| def subset_sum(lst,K): | |
| lst.sort() | |
| sz = len(lst) | |
| def subset_sum_helper(index,s): | |
| if index == sz or s >= K : return s == K | |
| return subset_sum_helper(index + 1, s) or subset_sum_helper(index + 1, s + lst[index]) | |
| return subset_sum_helper(0 , 0 ) | |
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