Program Of GET PUT Function In C

#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
#include<string.h>
 

main()
 

{
 

clrscr();
 

FILE *f1,*f2,*f3;
 

int i,a,m,n;
 

printf("Enter No. Of Char");
 

scanf("%d",&m);
 

printf("\n Contens Of Main File=");
 

f1=fopen("Main","w"); 

for(i=1;i<=m;i++)
 

{
 

scanf("%d",&n);
 

if(n==-1)
 

break;
 

putw(n,f1);
 

}
 

fclose(f1);
 

f1=fopen("Main","r");
 

f2=fopen("ODD","w");
 

f3=fopen("EVEN","w");
 

a=getw(f1);
 

while(a!=EOF)
 

{
 

if(a%2==0)
 

{
 

putw(a,f3);
 

}
 

else
 

{
putw(a,f2);
 

}
 

a=getw(f1);
 

} 

fclose(f1);
 

fclose(f2);
 

fclose(f3);
 

f2=fopen("ODD","r");
 

f3=fopen("EVEN","r");
 

printf("Content of ODD File \n");
 

while(a=getw(f2)!=EOF) 

{
 

printf("%d\n",a);
 

}
 

printf("Content Of Even File\n ");
 

while(a=getw(f3)!=EOF)
 

{
 

printf("%d\n",a);
 

}
 

fclose(f2);
 

fclose(f3);
 

getch();
 

}

Program Of Array Using Realloc In C

#include<stdio.h>

#include<conio.h>
 

#include<malloc.h>
 

main()
 

{
 

int *a,i,n,y;
 

clrscr();
 

printf("How many Blocks U want to Create For Array =");
 

scanf("%d",&n);
 

for(i=0;i<n;i++)
{
 

 a=(int *)malloc(sizeof(int));
 

}
 

for(i=0;i<n;i++)
 

{
 

printf("a[%d]==> ",i);
 

scanf("%d",&a[i]);
 

}
 

printf("\n============Array Is=============\n");
 

for(i=0;i<n;i++)
 

{
 

printf("\n a[%d]==>%d ",i,a[i]);
 

}
 

printf("\n How Many Memory U want to Reallocate =");
 

scanf("%d",&y);


for(i=0;i<y;i++)
{
 

 a=(int *)realloc(a,y);
 

}
 

for(i=n;i<n+y;i++)
 

{
 

printf("a[%d]==> ",i);
 

scanf("%d",&a[i]);
 

}
 

printf("\n======== again Array Is=============\n");
 

for(i=0;i<n+y;i++)
 

{
 

printf("\n a[%d]==>%d ",i,a[i]);
 

}
 

getch();
 

}

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What is Realloc ?

The Realloc() function changes the size of a block of memory that was previously allocated with Malloc() or Calloc().