C++ programs not working correctly in VS Code

Question

I deleted the contents of my settings.json file by mistake and after that, all my C++ programs are not working correctly.

Here is a code snippet for reference:

#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef long double ld;
#define EPS 1e-9

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);

    cout << "enter a number";
    int n;
    cin >> n;

    return 0;
}

Ideally, while running the program, it should print the cout statement "enter a number" and then ask for user input. But it is printing the statement in the end and asking for input first.

Here is the screenshot for the same:

Also, I tried running a C code and a Java code as well and they seem to work fine. The problem lies with just C++ programs.