## IOI 2020 – Contest Day 1- Tickets Problem and Solution

The 32nd International Olympiad in Informatics was held in Online in 2020. There were two competition days, with 3 tasks given to the competitors on each day. You can see Tickets Problem and Solution below. Problem : Solution :  1,025 total views

## IOI 2020 – Contest Day 1- Supertrees Problem and Solution

The 32nd International Olympiad in Informatics was held in Online in 2020. There were two competition days, with 3 tasks given to the competitors on each day. You can see Supertrees Problem and Solution below. Problem : Solution :  855 total views

## IOI 2020 – Contest Day 1- Plants Problem and Solution

The 32nd International Olympiad in Informatics was held in Online in 2020. There were two competition days, with 3 tasks given to the competitors on each day. You can see Plants Problem and Solution below. Problem : Solution :  776 total views,  1 views today

## APIO 2020 Problems and Solutions – Fun Tour

Time limit 2 s Memory limit 512 MB Problem : There are NN attractions in the biggest theme park in Jakarta, numbered from 00 to N - 1N−1. These attractions are connected by N - 1N−1 bidirectional roads such that there is a unique path between any pair of attractions through

## APIO 2020 Problems and Solutions – Swapping Cities

Time limit 2 s Memory limit 512 MB Problem : There are NN cities in Indonesia, numbered from 00 to N - 1N−1. There are also MM two-way roads, numbered from 00 to M - 1M−1. Each road connects two different cities. The ii-th road connects the U[i]U[i]-th city and

## APIO 2020 Problems and Solutions – Painting Walls

Time limit 1500 ms Memory limit 512 MB Problem : It has been a while since the last time Pak Dengklek painted the wall on his house, so he wants to repaint it. The wall consists of NN segments, numbered from 00 to N - 1N−1. For this problem, we

## IOI 2019 – Sky Walking Problem and Solution

The 31st International Olympiad in Informatics was held in Baku, Azerbaijan in 2019. There were two competition days, with 3 tasks given to the competitors on each day. You can see Sky Walking Problem and Solution below. Problem : Solution : Explanation :

## IOI 2019 – Vision Program Problem and Solution

The 31st International Olympiad in Informatics was held in Baku, Azerbaijan in 2019. There were two competition days, with 3 tasks given to the competitors on each day. You can see Vision Program Problem and Solution below. Problem : Solution : Explanation :

## IOI 2019 – Broken Line Problem and Solution

The 31st International Olympiad in Informatics was held in Baku, Azerbaijan in 2019. There were two competition days, with 3 tasks given to the competitors on each day. You can see Broken Line Problem and Solution below. Problem : Solution : Explanation :

## IOI 2019 – Rectangles Problem and Solution

The 31st International Olympiad in Informatics was held in Baku, Azerbaijan in 2019. There were two competition days, with 3 tasks given to the competitors on each day. You can see Rectangles Problem and Solution below. Problem : Solution : Explanation :  497 total

## IOI 2019 – Split the Attractions Problem and Solution

The 31st International Olympiad in Informatics was held in Baku, Azerbaijan in 2019. There were two competition days, with 3 tasks given to the competitors on each day. You can see Split the Attractions Problem and Solution below. Problem : Solution : Explanation :

## IOI 2019 – Arranging Shoes Problem and Solution

The 31st International Olympiad in Informatics was held in Baku, Azerbaijan in 2019. There were two competition days, with 3 tasks given to the competitors on each day. You can see Arranging Shoes Problem and Solution below. Problem : Solution : Explanation :

## APIO 2016 Problem and Solution

The official APIO 2016 Problems and solutions in this post. Problem – A (Boat) : Solution – A (Boat) : Problem – A (Fireworks) : Solution – A (Fireworks) : Problem – C (Gap) : Solution – C (Gap) :  324 total views

## APIO 2017 Problems and Solutions

The official APIO 2017 Problems and solutions in this post. Problem – A (Koala Game) : Solution – A (Koala Game) : Problem – B (Merchant) : Solution – B (Merchant) : Problem – C (Land of the Rainbow Gold) : Solution – C (Land of the

## APIO 2018 Problems and Solutions

The official APIO 2018 Problems and solutions in this post. Problems : Solution – A (New Home) : Solution – B (Circle Selection) : Solution – C (Duathlon) :  420 total views

## IOI 2018 – Meetings Problem and Solution

The 30th International Olympiad in Informatics was held in Tsukuba, Japan in 2018. There were two competition days, with 3 problems given to the competitors on each day. You can see Meetings problem and solutions below. Problem : Solution :  411 total views,

## IOI 2018 – Highway Tolls Problem and Solution

The 30th International Olympiad in Informatics was held in Tsukuba, Japan in 2018. There were two competition days, with 3 problems given to the competitors on each day. You can see Highway Tolls problem and solutions below. Problem : Solution : Explanation :

## IOI 2018 – Mechanical Doll Problem and Solution

The 30th International Olympiad in Informatics was held in Tsukuba, Japan in 2018. There were two competition days, with 3 problems given to the competitors on each day. You can see Mechanical Doll problem and solutions below. Problem : Solution : Explanation :