File Open Read And Write

    READ MODE
#include<stdio.h>
#include<stdlib.h>

int main()
{

    int i;
    FILE *fp;
    fp=fopen("D:\\newfile.txt","w");
   // fputs("123456",fp);
   for(i=1;i<=10;i++)
   {
       fprintf(fp,"%d\n",i);
   }
fclose(fp);

}





WRITE MODE


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

int main()
{
    FILE *fp;
    fp=fopen("D:\\newfile.txt","r");
int i,num;
  char c[100];


for(i=1; i<=10; i++)
{
    fscanf(fp,"%d\n",&num);
    printf("%d\n",num*num);
}
fclose(fp);

}