C++ program to find out the nth terms of its factorial

In this post, we will write a C++ program to find out the nth terms of its factorial. user will enter any number that he wants to print and the program will print that nth term of its factorial.

C++ program to find out the nth term of its factorial.

#include<iostream>
#include<conio.h>

int main()
{
    int i,n;
    float res,j,k;
system("cls");

    std::cout<<"Enter any number you want to series = ";
    std::cin>>n;

    res = 1;
    k = 0;

    for(i=1;i<=n;i++)
    {
        res = res*i;
        j = i/res;
        k = k+j;
    }

    std::cout<<"1/1! + 2/2! + 3/3! + 4/4! + ... + n/n! = "<<k;

    getch();
    return 0;
}

Output

Enter any number you want to series = 5
1/1! + 2/2! + 3/3! + 4/4! + .... + n/n! = 2.708333

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