__ C++ program to generate sum of series 1!+2!+3!+--------------n! __

Given a number n , write a program to generate a sum of series 1!+2!+3!+--------------n! . For generating this first we have to know that how to find the factorial of a number .

**Program to find the factorial of a number : - Click here**

**Sample input**

3

**Sample output**

Sum of the series is: 9

**Explanation:**

= 1! + 2! + 3!

= 1+2+6

= 9

__C++ program to generate sum of series 1!+2!+3!+--------------n! __

The objective of the code is to generate sum of series 1!+2!+3!+--------------n! .

__Code(C++):-__

#include<bits/stdc++.h>

using namespace std;

// function for finding factorial

int fact(int n)

{

int i,f=1;

for(i=1;i<=n;i++)

f=f*i;

return f;

}

int main()

{

int n,sum=0,i;

cout<<"Enter a number\n";

cin>>n;

for(i=1;i<=n;i++)

{

sum=sum+fact(i);

}

cout<<"Sum of the series is: "<<sum;

return 0;

}

__Output:-__

Enter a number

3

Sum of the series is: 9

__Recommended Post ____:-__

__Recommended Post__

__:-__

__HCL Coding Questions:-__

__Capgemini Coding Questions:-__

__iMocha coding Questions:-__

__Tech Mahindra coding questions:-__

__Unthinkable Solutions coding questions:-__- Swap the adjacent characters of the string
- Double the vowel characters in the string
- Character with their frequency
- Program to find the closest value

__Must check this:-__

__Companies interview:-__- Swap adjacent characters
- Double the vowel characters
- Check valid parenthesis
- Print the characters with their frequencies
- Find closest value
- Word Count
- Program of CaesarCipher
- Program to find the perfect city
- Annual Day | Tech Mahindra coding question
- Find the number of pairs in the array whose sum is equal to a given target.

__Full C course:- __

__Key points:-__

- How to set limit in the floating value in python
- What is boolean data type
- How to print any character without using format specifier
- How to check that given number is power of 2 or not
- How to fix limit in double and floating numbers after dot (.) in c++
- How to print a double or floating point number in scientific notation and fixed notation
- How to take input a string in c
- How to reduce the execution time of program in c++.

__Cracking the coding interview:-__

__Array and string:-__

__Tree and graph:-__

__Hackerearth Problems:-__

- Very Cool numbers | Hacker earth solution
- Vowel Recognition | Hackerearth practice problem solution
- Birthday party | Hacker earth solution
- Most frequent | hacker earth problem solution
- program to find symetric difference of two sets
- cost of balloons | Hacker earth problem solution
- Chacha o chacha | hacker earth problem solution
- jadu and dna | hacker earth solution
- Bricks game | hacker earth problem
- Anti-Palindrome strings | hacker earth solution
- connected components in the graph | hacker earth data structure
- odd one out || hacker earth problem solution
- Minimum addition | Hackerearth Practice problem
- The magical mountain | Hackerearth Practice problem
- The first overtake | Hackerearth Practice problem

__Hackerrank Problems:-__- Playing With Characters | Hackerrank practice problem solution
- Sum and Difference of Two Numbers | hackerrank practice problem solution
- Functions in C | hackerrank practice problem solution
- Pointers in C | hackerrank practice problem solution
- Conditional Statements in C | Hackerrank practice problem solution
- For Loop in C | hackerrank practice problem solution
- Sum of Digits of a Five Digit Number | hackerrank practice problem solution
- 1D Arrays in C | hackerrank practice problem solution
- Array Reversal | hackerrank practice problem solution
- Printing Tokens | hackerrank practice problem solution
- Digit Frequency | hackerrank practice problem solution
- Calculate the Nth term | hackerrank practice problem solution

__Data structure:-__

- Program to find cycle in the graph
- Implementation of singly link list
- Implementation of queue by using link list
- Algorithm of quick sort
- stack by using link list
- program to find preorder post order and inorder of the binary search tree
- Minimum weight of spanning tree
- Preorder, inorder and post order traversal of the tree

__ MCQs:-__

## 0 Comments