IntegerPalindrome
SRM 302 · 2006-05-11 · by Andrew_Lazarev
SRM 302 · 2006-05-11 · by Andrew_Lazarev · Math
Problem Statement
Problem Statement
A positive integer is called a palindrome if it reads the same forward and backward. Integers containing leading zeros are not valid. For example, 12321 is a palindrome, but 123210 is not. You are given an
Constraints
- K will be between 0 and 1000000000 (109), inclusive
Examples
0)
8 Returns: 9
1)
9 Returns: 11
2)
19 Returns: 111
3)
235 Returns: 13731
4)
23746 Returns: 137484731
Submissions are judged against all 93 archived test cases, of which 5 are shown here. Case numbers match the judge’s.
Coding Area
Language: C++17 · define a public class IntegerPalindrome with a public method long long findByIndex(int K) · 93 test cases · 2 s / 256 MB per case