Kakao Releases Solutions for 5 Problems from 2019 Winter Internship Coding Test

Kakao has released the 5 problems and solutions from the first coding test of the 2019 Winter Developer Internship. Unlike the new graduate recruitment which featured 7 problems, this test consisted of 5 problems, with difficulty adjusted for additional verification during the internship. The released solutions include algorithmic approaches to pass accuracy and efficiency tests for each problem, such as the Doll-Pulling Game (Stack), Tuple (Set Difference), Bad User (Backtracking), Hotel Room Assignment (Union Find), and Stepping Stones (Binary Search).