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Numbers with same first and last digit
Easy Accuracy: 27.1% Submissions: 155 Points: 2

Given a range of numbers starting with integer L and ending at R, the task is to count the numbers which have same first and last digits.

 

Example 1:

Input:
L = 7 
R = 68
Output:
9
Explanation:
Number with the same 
first and last digits 
in the given range is:
[7, 8, 9, 11, 22, 33, 
44 ,55, 66].

 

Example 2:

Input:
L = 5
R = 40
Output:
8
Explanation:
Number with the same
first and last digits
in the given range is:
[5, 6, 7, 8, 9, 11, 
22, 33, 44].


 

Your Task:

You don't need to read input or print anything. Your task is to complete the function numbersInRange() which takes integers L and R and returns the count of numbers if L>R return 0.

 

Expected Time Complexity: O(1)
Expected Auxiliary Space: O(1)

 

Constraints:
1 <= L,R <= 108

 

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Numbers with same first and last digit

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