If file doesn't exit it return NULL

 #include<stdio.h>

int main(){

    FILE *ptr;

    int num;

    int num2;

    ptr = fopen("sunil.txt", "r");

    if (ptr == NULL){

        printf("This file does not exist\n");

    }

    else{ 

        fscanf(ptr, "%d", &num);

        fscanf(ptr, "%d", &num2);

        fclose(ptr);

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

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

    }

    return 0;

}