#include<stdio.h>
#include<stdlib.h>
int main()
{
    FILE *p;
    int i,arr[10];
    if((p=fopen("demofile.txt", "wb"))==NULL)
        {
            printf("\nUnable to open file demofile.txt");
            exit(1);
        }
    printf("\nEnter ten values\n");
    for(i=0; i<10; i++)
        scanf("%d",&arr[i]);
    fwrite(arr,sizeof(arr),1,p);
    fclose(p);
    return 0;
}