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Computing the integer square root of n
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| k = 0 | |
| j = 1 | |
| m = 1 | |
| while m <= n | |
| k = k + 1 | |
| j = j + 2 | |
| m = m + j | |
| end | |
| # the answer is in k |
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j = 1 3 5 7 9 ...
m = 1 4 9 16 25 ...