题目描述：
代码：
#include <iostream>
#include <string.h>
using namespace std;
struct student
{
int number;
char name[20];
student *next;
};
student *createlist(int n)
{
int i;
student *head=NULL;
student *p=NULL;
head=new student;
head->next=NULL;
p=head;
cin>>p->number>>p->name;
for(i=1;i<n;i++)
{
p->next=new student;
p=p->next;
p->next=NULL;
cin>>p->number>>p->name;
}
return head;
}
void searchstu(student *head,char *str)
{
student *current;
current=head;
while(current!=NULL)
{
if(!strcmp(current->name,str))
{
cout<<current->number<<endl;
break;
}
else
current=current->next;
}
}
void destroy(student *head)
{
student *p;
p=head;
while(head!=NULL)
{
p=head;
head=head->next;
delete p;
}
}
int main()
{
int n;
char str[20];
student *head;
cin>>n;
head=createlist(n);
cin>>str;
searchstu(head,str);
destroy(head);
return 0;
}
结果展示：
