Int a[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}, *p =

A, i;

Char s[ ]="china";

Char *p;

P = s;

Struct abc {

int x;

char y;

};

Struct abc s1, s2;

Struct ex {

int x;

float y;

char z ;

} example;

Struct pupil{

char name[20];

int age;

int sex;

}pup[5];

Struct student

{

int no;

char name[20];

char sex;

struct{

int year;

int month;

int day;

}birth;

};

Struct student s;

Struct {

int x, y;

} s[2] = { {1, 3}, {2, 7} };

Printf("%d\n", s[0].y/s[1].x );

Struct Student{

char name[10];

int age;

char gender;

}std[3], *p=std;

则以下各输入语句中错误的是：

int f(int n)

{

if (n != 0){

return f(n-1) + n;

}else{

return n;

}

}