opening and reading a file in c

 #include <stdio.h>

int main()

{

    FILE *ptr;

    int num1, num2;

    ptr = fopen("C:\\LearnC\\sample.txt", "r");

    fscanf(ptr, "%d", &num1);

    fscanf(ptr, "%d", &num2);

    if (ptr == NULL)

    {

        printf("The file does not exist");

    }

    printf("The value of num is %d\n", num1);

    printf("The value of num is %d\n", num2);

    fclose(ptr);

    return 0;

}