### News

- IOI 2018 Philippine TeamAndrew Ting, CJ Quines, Dan Baterisna, and Franz Cesista are the 2018 Philippine representatives to the IOI 2018 in Tsukuba, Japan.
- All Filipino participants bag medals in Singapore Informatics OlympiadSix Filipino students traveled to Singapore to compete in their national informatics olympiad. The delegation consisted of three Grade 12 students and three Grade 10 students. They were chosen among […]
- 2018 National FinalsThe NOI.PH 2018 National Finals was held in Pointwest Innovations Corporation in Quezon City last 17 – 18 February 2018. It consisted of two rounds on-site, each of which consisted of five […]
- A Firsthand Account of the NOI.PH Onsite ExperienceIntroduction Is it going to be your first time to go to the final round? Has it been one of your hashtag life goals to officially participate in the onsite round but haven’t gotten around to […]
- 2018 National EliminationsThe NOI.PH 2018 National Eliminations started on 6PM of 5 January 2018 and finished on 11:59PM of 14 January 2018. It consisted of fifteen problems of varying difficulty. The Participants Among the […]

### Your First NOI Problem

- Introduction to Programming ContestsNOI.PH is almost like a math competition in the sense that contestants are given a problem to solve. Contestants must then prove that they know how to solve […]
- The Problem StatementWe are discussing the Aguinaldo sample problem. This is Part 1 of a series of posts which started here. Emilio has $latex N$ relatives. During Christmas, the […]
- Input Format and Sample InputWe are discussing the Aguinaldo sample problem. This is Part 2 of a series of posts which started here. The first line of input will contain an integer […]
- Constraints and Time LimitsWe are discussing the Aguinaldo sample problem. This is Part 3 of a series of posts which started here. $latex 1 \le T \le 100$ Subtask 1 (40 points […]