Problems from Benelux Algorithm Programming Contest (BAPC) 2018

Languages
A Prize No One Can Win0.00717169230832%2.8Mediumen
Birthday Boy0.00387115836031%4.8Mediumen
Cardboard Container0.0089238473931%2.6Easyen
Driver Disagreement0.016572034924%7.4Harden
Entirely Unsorted Sequences0.0580821611051%4.1Mediumen
Financial Planning0.0182284277827%3.7Mediumen
Game Night0.0062343018343%5.0Mediumen
Harry the Hamster0.078721354130%8.9Harden
In Case of an Invasion, Please...0.45143447012126%7.8Harden
Janitor Troubles0.00293985267767%1.5Easyen
Kingpin Escape0.0352957014225%6.8Harden