Created
April 19, 2010 19:46
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| # http://reprog.wordpress.com/2010/04/19/are-you-one-of-the-10-percent | |
| A = [0, 34, 100] | |
| def binary_search(i, j, v): | |
| if j-i <= 2: | |
| for k in range(i,j): | |
| if A[k] == v: | |
| return j | |
| return -1 | |
| # j > i+2 | |
| mid = (i+j)/2 | |
| if A[mid] == v: | |
| return mid | |
| if A[mid] > v: | |
| return binary_search(i, mid, v) | |
| if A[mid] < v: | |
| return binary_search(mid, j, v) | |
| binary_search(0, len(A), 5) |
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A = [1]
binary_search(0, len(A), 1) # returns 1, which is not even a valid index
Guess you're not part of the 10%