Created
January 5, 2015 07:00
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Modular Multiplicative Inverse of a when m = 1000000007
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| uint64_t modinv_1000000007(uint64_t a) | |
| { | |
| a %= 1000000007; | |
| uint64_t r = a; | |
| a = (a * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| r = (r * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| r = (r * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| r = (r * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| r = (r * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| r = (r * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| r = (r * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| r = (r * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| r = (r * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| r = (r * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| r = (r * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| r = (r * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| r = (r * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| r = (r * a) % 1000000007; | |
| a = (a * a) % 1000000007; | |
| return (r * a) % 1000000007; | |
| } |
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