[填空题]已知递归函数f的定义如下：
int f(int n)

if(n＜=1) return 1; //递归结束情况
else return n*f(n-2); //递归

则函数调用语句f(5)的返回值是______。

A university student in Nairobi, Kenya, was stopped for a traffic violation the other day. The policeman took out his ticket book and asked," What tribe are you." In Lusaka, Zambia, a young man applying for a job was told to see the manager. He leaned over the receptionist’s desk and asked," What tribe is he "When the receptionist told him that the manager was a Mashona, the applicant replied," Then I’ll never get the job."
This phenomenon is called tribalism. There are more than 2, 000 tribes in black Africa. Each has its own language, customs, names, and physical characteristics that make its members almost immediately recognizable to a person from another tribe. To the Westerner, tribalism is one of the most difficult of African customs to understand. It makes many people think of savagery, warfare, or old fashioned customs.
However, to most Africans ,tribalism simply means very strong loyalty to one’s ethnic grou
A. that it is unimportant
B. how many tribes there are
C. that it is a large number
D. how many people there are

一个三位整数(100～999)，若各位数的立方和等于该数自身，则称其为"水仙花数"(如：153=13+5³+3³)，找出所有的这种数。
main（　）
{
int n，a，b，c；/*n、a、b和C分别为三位数自身及其个位、十位和百位*/
for(c=1；c＜=9；c++)
for(b=0；b＜=9；b++)
for(______；a++)/*第一空*/
{
n=______；/*第二空*/
if(a*a*a+b*b*b+e*c*c==______)/*第三空*/
printf("%d/n"，n)；
}
}