To calculate the mean and medium of any sorted series

Question - 

Given an sorted series, you have to find the mean and medium of that series.

Example - 

Input : 1, 2, 3, 4, 5

Output : mean = 3 , medium =3

Approach - 

we solve this question with the help of standard formula.

Implementation - 

//To calculate mean and medium

#include<iostream>

using namespace std;

int main()

{

    cout<<"\t\t\tTo find mean and medium of sorted series"<<endl;

    int n;

    cout<<"Enter the no of numbers in sorted series : ";cin>>n;

    int arr[n];

    cout<<"Enter sorted series : "<<endl;

    for(int i=0;i<n;i++)

    cin>>arr[i];

    double mean=0,medium;

    for(int i=0;i<n;i++)

    mean+=arr[i];

    mean=mean/n;

    

    if(n%2==0){

        medium=(arr[n/2-1]+arr[n/2])/2;

    }

    else

    medium=arr[n/2];

    cout<<"Mean of this series is : "<<mean<<endl;

    cout<<"Medium of this series is : "<<medium;

}

code on compiler 

Time complixity - O(1)