Question

to generate the general no between 1to10 write the general syntax​

Answer 1

Given a number n, find sum of digits in all numbers from 1 to n.  

Examples:  

Input: n = 5

Output: Sum of digits in numbers from 1 to 5 = 15

Input: n = 12

Output: Sum of digits in numbers from 1 to 12 = 51

Input: n = 328

Output: Sum of digits in numbers from 1 to 328 = 3241

Naive Solution:  

A naive solution is to go through every number x from 1 to n, and compute sum in x by traversing all digits of x. Below is the implementation of this idea.  

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