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Advanced Algorithms: Russian Peasant Product
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| int getRussianPeasantProduct(int n, int m, int extra){ | |
| int next_n; | |
| int next_m; | |
| int next_extra; | |
| if (n == 1){ | |
| return m + extra; | |
| } else if (n % 2 == 0) { | |
| next_n = n / 2 as int; | |
| next_m = m * 2; | |
| return getRussianPeasantProduct(next_n, next_m, extra); | |
| } else { | |
| next_n = ((n - 1) / 2) as int; | |
| next_m = m * 2; | |
| next_extra = extra + m; | |
| return getRussianPeasantProduct(next_n, next_m, next_extra); | |
| } | |
| } | |
| void main(){ | |
| print(getRussianPeasantProduct(50, 65, 0)); | |
| assert(getRussianPeasantProduct(50, 65, 0) == 50 * 65); | |
| } |
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