dsparber / algolab

My solutions for the ETH Algorithms Lab 2020

Algorithms Lab 2020

Build

mkdir build
cd build
cmake ..
make -j8

Problems

Task	Implementation	Score	Week	Topics
Build the Sum	build_the_sum.cpp	100	Week 1	---
Dominoes	dominoes.cpp	100	Week 1	---
Even pairs	even_pairs.cpp	100	Week 1	---
Even Matrices	even_matrices.cpp	100	Week 1	---
Deck of Cards	deck_of_cards.cpp	100	Week 2*	DP
Burning Coins	burning_coins.cpp	100	Week 2	DP
The Great Game	the_great_game.cpp	100	Week 2	DP
Beach Bars	beach_bars.cpp	100	Week 2	SW
Search Snippets	search_snippets.cpp	100	Week 2	SW
Russia	russia.cpp	100	Week 3*	DP
Hit	hit.cpp	100	Week 3	Geo
First Hit	first_hit.cpp	100	Week 3	Geo
Antenna	antenna.cpp	100	Week 3	Geo
Hiking Maps	hiking_maps.cpp	100	Week 3	Geo
Defensive Line	defensive_line.cpp	100	Week 4*	SW & DP
First Steps with BGL	first_steps.cpp	100	Week 4	SP
Ant Challenge	ant_challenge.cpp	100	Week 4	MST & SP
Buddy Selection	buddy_selection.cpp	100	Week 4	MM
Important Bridges	important_bridges.cpp	100	Week 4	2CC
Motorcycles	motorcycles.cpp	100	Week 5*	Geo
Boats	boats.cpp	100	Week 5	Greedy
Attack of the Clones	attack_of_the_clones.cpp	100	Week 5	Greedy
San Francisco	san_francisco.cpp	100	Week 5	DP
Asterix the Gaul	asterix_the_gaul.cpp	100	Week 5	BS & SL
Tracking	tracking.cpp	100	Week 6*	SP
Shopping Trip	shopping_trip.cpp	100	Week 6	MF
Knights	knights.cpp	100	Week 6	MF
Tiles	tiles.cpp	100	Week 6	MF
Kingdom Defence	kingdom_defence.cpp	100	Week 6	MF
Octopussy	octopussy.cpp	100	Week 7*	DP-like
Maximize it	maximizeit.cpp	100	Week 7	LP
Diet	diet.cpp	100	Week 7	LP
Inball	inball.cpp	100	Week 7	LP
Radiation	radiation.cpp	100	Week 7	LP
Surveillance	surveillance.cpp	100	Week 8*	MF
Bistro	bistro.cpp	100	Week 8	DT
Germs	germs.cpp	100	Week 8	DT
H1N1	h1n1.cpp	100	Week 8	DT, MST
Clues	clues.cpp	100	Week 8	DT, 2C, CC
Legions	legions.cpp	100	Week 9*	LP
Casino Royale	casino.cpp	100	Week 9	MCMF
Real Estate	real_estate.cpp	100	Week 9	MCMF
Algocoon	algocoon.cpp	100	Week 9	MC
Placing Knights	placing_knights.cpp	100	Week 9	MaxIS
Idefix	idefix.cpp	100	Week 10*	DT & UF
Chariot Race	chariot_race.cpp	100	Week 10	DP-like
New York	new_york.cpp	100	Week 10	SW over tree
Worldcup	worldcup.cpp	100	Week 10	LP & DT
Switzerland	switzerland.cpp	100	Week 10	MF
Fleet Race	fleetrace.cpp	100	Week 11*	MCMF
Return of the Jedi	return_of_the_jedi.cpp	100	Week 11	2nd best MST
Lestrade	lestrade.cpp	100	Week 11	LP & DT
Hand	hand.cpp	100	Week 11	DT, UF
Meereen	meereen.cpp	100	Week 11	DP
Iron Islands	iron_islands.cpp	100	Week 12*	SW
Car Sharing	carsharing.cpp	100	Week 12	MCMF
Hong Kong	hongkong.cpp	100	Week 12	DT, SP
India	india.cpp	100	Week 12	BS & MCMF
Moving Books	moving_books.cpp	100	Week 12	Greedy
Lannister	lannister.cpp	100	Week 13*	LP
Evolution	evolution.cpp	100	Week 13	DFS & BS
Marathon	marathon.cpp	100	Week 13	SP & MF
Punch	punch.cpp	100	Week 13	DP
Sith	sith.cpp	100	Week 13	DT & BS
Secret Service	secret_service.cpp	100	Week 14*	BS & MF

Legend

• *: This was a "Problem of the Week"
• 2C: 2-Coloring / Bipartition
• 2CC: 2-Connected Components / Biconnected Components
• BS: Binary Search
• CC: Connected Components
• DFS: Depth First Search
• DP: Dynamic Programming
• DT: Delaunay Triangulation
• Geo: Geometric
• LP: Linear Programming
• MC: Min. Cut
• MCMF: Min. Cost Max. Flow
• MF: Max. Flow
• MM: Maximal Matching
• MST: Minimum Spanning Tree
• SL: Split & List
• SP: Shortest Path
• SW: Sliding Window
• UF: Union Find

Official Solutions

For some problems, an official solutions was released. You can find them in this repository as well.