How to Solve Strictly Palindromic Number Problem
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Strictly Palindromic Number
An integer n is strictly palindromic if, for every base b between 2 and n - 2 (inclusive), the string representation of the integer n in base b is palindromic. Given an integer n, return true if n is ...
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Understanding the Strictly Palindromic Number Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
An integer n is strictly palindromic if, for every base b between 2 and n - 2 (inclusive), the string representation of the integer n in base b is palindromic. Given an integer n, return true if n is strictly palindromic and false otherwise. A string is palindromic if it reads the same forward and backward.
Strictly Palindromic Number
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Examples
n = 9falseIn base 2: 9 = 1001 (base 2), which is palindromic. In base 3: 9 = 100 (base 3), which is not palindromic. Therefore, 9 is not strictly palindromic so we return false. Note that in bases 4, 5, 6, and 7, n = 9 is also not palindromic.
n = 4falseWe only consider base 2: 4 = 100 (base 2), which is not palindromic. Therefore, we return false.
Constraints
4 <= n <= 105How Interview Coder Helps with Leetcode Problems
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