Code RoomMinimum insertions to form palindrome
HardPrep Room Coding #94

Minimum insertions to form palindrome

CodingAlgorithms & data structuresSenior–Staff~25 min

Given a string s, in one operation you may insert any single character at any position. Return the minimum number of insertions required to turn s into a palindrome. The string consists of lowercase English letters and has length between 1 and 500.

Implement
min_insertions_palindrome(s: str) → int
Examples
in["zzazz"]out0
What a strong answer looks like

State your approach and its time/space complexity out loud before you optimize. Handle the edge cases (empty input, duplicates, overflow), and say why you chose this over the brute force. Green tests are the floor, not the grade.

0:00 of about 25 min
InputExpectedGot
["zzazz"]0not run yetsample