#include <stdio.h> ///#include <malloc.h> struct student {     char name[20];     int score; }; struct student *a,*b; //stu *a,*b; int n=2; int total=0; a=(struct student *)malloc(n*sizeof(stu)); void insert() {     int i;     if(total>=n)     {         b=(struct student *)malloc(n*sizeof(stu));         free(a);         n=n*2;         a=(struct student *)malloc(n*sizeof(stu));         for(i=0;i<n/2;i++)             a[i]=b[i];         free(b);     }     scanf("%s%d",a[total].name,&a[total].score);     total++; } void print() {     int i;     for(i=0;i<total;i++)         printf("%s-%d\n",a[i].name,a[i].score); } int main() {     char choice;     while(scanf("%c",&choice))     {         if(choice=='I' || choice=='i')             insert();         else if(choice=='P' || choice=='p')             print();     } }

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