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def edit_distance(_first , _second): first_len , second = _first.replace(' ','') second= _second.replace(' ','') first_len = len(first) , second_len = len(second) if first_len > second_len : first , second = second , first first_len , second_len = second_len , first_len print(first_len) print(second_len) current = range(first_len+1) for i in range(1,second_len+1): previous , current = current , [i]+[0]*second_len for j in range(1,first_len+1): add , delete = previous[j]+1 , current[j-1]+1 change = previous[j-1] if first[j-1] != second[i-1]: change = change + 1 current[j] = min(add , delete , change) return current[first_len] sFirstStr = sys.argv[1] sSecondStr = sys.argv[2] sFirst = unicode(sFirstStr,'cp949') sSecond = unicode(sSecondStr,'cp949') nDistanceValue = edit_distance(sFirst,sSecond) print(nDistanceValue) |