C program to Calculate 1! + 2! + 3! + 4! + 5! + ... + n! series

Series Program

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• C Programming Exercises
• Basic C programming exercises
• Bitwise operator exercises
• Conditional operator exercises
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• Star patterns exercises
• Number pattern exercises
• Functions and recursion exercises
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• String exercises
• Pointer exercises
• Files handling exercises

Program to Print Number Series in C

In c language you can print any number series. Here i will show you how to print number series in c language with explanation. In case of print number series you need to focus on common difference between two numbers..

C program to Calculate 1! + 2! + 3! + 4! + 5! + ... + n! series

#include<stdio.h>
long fact(int n)
{
    long i, f=1;
    for(i=1;i<=n;i++)
    {
        f=f*i;
    }
    return f;
}

int main()
{
    long i,n,sum=0;
    n=5;
    for(i=1;i<=n;i++)
    {
        sum=sum+fact(i);
    }
    printf("Sum: %d",sum);
    return 0;
}

Output:

sum: 153

#include <stdio.h>
#include <stdlib.h>
long fact(int n);
int main()
{
    int i,j,n,sum=0;
    printf("\n Enter n value 1! + 2! + 3! + 4! + 5! + ... + n!:");
    scanf("%d",&n);
    for(i=1;i<=n;i++)
    {
        sum=sum+fact(i);
    }
    printf("Sum: %d",sum);
    return 0;
}
long fact(int n)
{
    long i, f=1;
    for(i=1;i<=n;i++)
    {
        f=f*i;
    }
    return f;
}

Output:

 Enter n value 1! + 2! + 3! + 4! + 5! + ... + n!:10
Sum: 4037913
Process returned 0 (0x0)   execution time : 2.609 s

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