Code Room
CodingHardcod-g202
Subject SimulationLevel Senior–Staff~30 minCommon in Algorithms & data structures interviewsIndustries Software development

Question

Children stand in a line, each with an integer rating. You distribute candies so that every child gets at least one candy and any child with a strictly higher rating than an adjacent neighbor gets strictly more candies than that neighbor. Return the minimum total number of candies needed. The line has at least one child; equal ratings impose no constraint between neighbors.

Implement
candy_distribution(ratings: list[int]) → int
Examples
in[[1,0,2]]out5
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.

Vibe coding: describe the solution in plain language (or narrate it) and the coach grades your approach. Generating runnable code from your description is coming next.

Run or narrate your approach, then ask the coach.