Series With Factorial Sum

★★★★★

4.3

3 votes

Easy

Details

Problem

Find The Sum of The Following Series

1/1! + 2/2! + 3/3! + 4/4! + ...... + N/N!

Input Format

Take Input Value of N

Output Format

Single Floating Value (i.e., Sum of Series)

Constraints

NOTE
Print Your Result Upto 4 Decimal Places

Sample Input

Sample Output

2.5000

Time Limit: 1

Memory Limit: 256

Source Limit: