Past and Sample Problems

Sample Problem 1

Sample Problem 2

Sample Problem 3

Past Algolympics Problems on HackerRank

Algolympics 2020
Algolympics 2019
Algolympics 2018
Algolympics 2017
Algolympics 2016
Algolympics 2015

Suggested Links:

The National Olympiad in Informatics - Philippines (NOI.PH) is an annual programming contest for Filipino high school students held by the non-government organization of the same name.

You can view the past problems on their site

The NOI.PH team has also prepared the following very useful articles:

Competitive Programming Preparation

A Tutorial