c 输出问题(急!!!)
#include "stdio.h "
struct student
{
int number;
struct student *leftchild,*rightchild;
};

/* 创建二叉树 */

struct student * IniTree()
{
struct student *p;
int i;
if((p=(struct student *)malloc(sizeof(struct student))) == NULL)
{
printf( "分配空间失败!!! ");
exit(0);
}
printf( "\n Input Number: ");
scanf( " %d \n ",&i);
p-> number=i;
p-> leftchild = NULL;
p-> rightchild =NULL;
return p;
}
main()
{
struct student *head;
head =IniTree();
printf( "\n Node Value: %d ",head-> number);
}

为什么我要输入两个数值后才能退出程序!!!!谢谢

[解决办法]
去掉 "\n "
scanf( " %d ",&i);