i want to give one file to fopen function. where i have to place that file and what is the path.

Question

fopen("hello.txt",r);

where i can place hello.txt. what path i have to given in fopen

Answer 1

If you attach hello.txt to your project (Upload and Crate New File buttons are on the left side of RUN button) then you do not need to specify anything else (no need for full path) just the file name. Also, the r part should be in quotes.

#include <stdio.h>
//...
FILE * file = fopen("hello.txt", "r");