HCI NOI Training 2026 Practice 5 (Algorithms)

First 9 problems are categorically split under Brute Force, Prefix Sums, and Sliding Window - 3 each. The aim is to solve these 9 problems. (cuberoot until razlika). The last 9 problems are for extra practice purposes, sorted in alphabetical order (NOT difficulty) because I don't want you guys to guess the topic the problem uses. Do them if ur done with everything before :). Dolphy be shamelessly stealing RI problems.