Answer Posted / dinakarangct

#include<stdio.h>
struct stud {
int i,j,k;
struct stud *next,*prev;
}**ptr;
void main(){
int i;
ptr= ( struct stud **)malloc(sizeof(struct stud*)*6400 );
for(i=0;i<6400;i++)
ptr[i]= ( struct stud *)malloc(sizeof(struct stud)*10 );
}

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