Problems

Matrix Cypher#7948

Hard · Matrix · Number theory · Constructive Algorithms

Model Railroad#7949

Medium · Greedy algorithms · Shortest paths · Priority Queue

One-Way Roads#7950

Hard · Binary Search · Graph network flows

Formula#7951

Easy · Geometry · Math

Detecting Molecules#7975

Medium · Binary Search · Sorting

Roller Coaster Railroad#7976

Hard · Greedy algorithms

Shortcut#7977

Very hard · Binary Search · Greedy algorithms · Prefix Sums · Sorting · Geometry

Irish Whiskey#7989

Hard · Prefix Sums · Data Structures

Kvass#7991

Medium · Games · Greedy algorithms

Average#8064

Easy · Implementation

Alchemy#8161

Medium · Sorting

Polyhedra#8172

Very easy · Math

Majority#8173

Very easy · Implementation

Diamonds#8174

Easy · Dynamic programming

Ramp Number#8177

Medium · Dynamic programming · Strings

Airports#8181

Very easy · Graphs · Shortest paths

Butterfly Effect#8182

Easy · Dynamic programming · Probabilities

Classy#8183

Easy · Sorting

Triangle#8184

Very easy · Implementation

Excellence#8185

Very easy · Greedy algorithms · Sorting

Falling Blocks#8186

Easy · Dynamic programming

Racing Gems#8187

Easy · Dynamic programming · Binary Search

Hilbert Sort#8188

Easy · Sorting

Coverage#8189

Medium · Geometry

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