Please help me find the error

#1

Hello, I compiled the program and ran it using different inputs. I am getting the correct answers, but on submitting, it shows all the test inputs get failed. Can you help me figure out my error?

#2

hi @astha119btcse21_7380491a239a3b9b
refer this

#include <bits/stdc++.h>
using namespace std;

long long int fib(long long int n)
{
    if (n <= 1)
        return n;

    return fib(n - 1) + fib(n - 2);
}

int main()
{
    int testCases;
    cin >> testCases;
    int k = 1;

    while (testCases--)
    {
        int n;
        cin >> n;
        cout << "#" << k++ << " : " << fib(n+2) << endl;
    }

    return 0;
}
#3

The solution that you sent is not readable

#4

hi @astha119btcse21_7380491a239a3b9b,