编程计算下面组合数的值, 按要求在空白处填写适当的表达式或语句,使程序完整并符合题目要求。 #include _________________________; int main() { int m, k; _________; do{ printf("Please input m,k (m>=k>0):"); scanf("%d, %d", &m, &k); } while (______________); p = (double)Factorial(m)/(Factorial(k)*Factorial (m-k)); printf("p=%.0f\n", p); return 0; } // 函数功能:计算无符号整型数 number 的阶乘 unsigned long Factorial(unsigned int number) { unsigned long i, result = 1; for (________________) { result *= i; } return result; }