Created
August 22, 2013 16:56
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fast exponential calculation using repeated squaring
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| int expo(int a, int b){ | |
| int result = 1; | |
| while (b) | |
| { | |
| if (b%2==1) | |
| { | |
| result *= a; | |
| } | |
| b /= 2; | |
| a *= a; | |
| } | |
| return result; | |
| } |
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