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May 25, 2019 21:34
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| def search(arr, l, r, x): | |
| if r >= l: | |
| mid = int(l + (r - l)/2) | |
| if len(arr) <= mid: | |
| return mid | |
| if arr[mid] == x: | |
| return r, mid | |
| elif arr[mid] > x: | |
| return search(arr, l, mid-1, x) | |
| else: | |
| return search(arr, mid + 1, r, x) | |
| else: | |
| return -1 |
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