俄国农夫算法 俄式乘法，又被称为俄国农夫法，它是对两个正整数相乘的非主流算法。假设m和n是两个正整数，我们要计算它们的积。-Russia Russian farmer multiplication algorithm, also known as the Russian farmer method, it is multiplying two positive integers non-mainstream algorithms. Suppose m and n are two positive integers, we have to calculate their product.