C++ Code Review: calculates sum of series of type 1/2+4/5+7/8+....

Description: This program calculates sum of series of type 1/2+4/5+7/8+....

Code:

//Compiling Tool: Code::Block IDE with MinGW

//Program calculates sum of series of type 1/2+4/5+7/8+...

 

#include<iostream>

#include<conio.h> //for getch()

 

using namespace std;

 

int main()

{

 

    int i,n;

    float sum=0,x,a=1;

 

    cout<<"Series Type:(1/2)+(4/5)+(7/8)+..."<<endl;

    cout<<"Enter the range of n:";

    cin>>n;

 

    for(i=0; i<n; ++i)

    {

        x=a/(a+1);

        sum+=x;

        a+=3;

    }

 

    cout<<"Sum="<<sum;

    getch();

}

 

Output:

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