How to use function freopen_s

Question

In order to read input from a text file, I wrote the following code:

int main(){
    int x;
#ifndef ONLINE_JUDGE
    freopen(\"input.txt\", \"r\", stdin);
#e         


        

Answer 1

I would give you an alternate way. If you still want to use freopen, you can use "-D _CRT_SECURE_NO_WARNINGS" this option with the terminal command, the error message will be suppressed.

In VS you can add it under the following link -

Project-> "Project" Properties -> C/C++ -> Command Line -> Additional Options(Text box on bottom right).

This should resolve the issue!