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Hanafuda Shuffle#7023

Абдан жеңил · Implementation

Red and Black#7024

Жеңил · Depth-first Search · Breadth-first Search

Unit Fraction Partition#7025

Жеңил · Dynamic programming

Circle and Points#7026

Орточо · Geometry

Water Tank#7027

Жеңил · Implementation

Name the Crossing#7028

Абдан жеңил · Graphs · Implementation

Polyclinic#7029

Жеңил · Greedy algorithms

Painting#7030

Татаал · Combinatorics · Graphs

Significant inversions#7031

Жеңил · Divide and Conquer · Sorting

Fortress#7032

Татаал · Geometry

Nested Sets#7033

Татаал · Dynamic programming · Bitmasks · Number theory · Combinatorics

Portals#7034

Орточо · Graphs · Shortest paths

Intersection — union#7047

Татаал · Sorting · Data Structures

Numbers#7048

Орточо · Dynamic programming · Math

Alien Dictionary#7049

Абдан жеңил · Binary Search · Dynamic programming

Fluorography#7050

Жеңил · Implementation · Prefix Sums

Symmetrical Patterns#7051

Орточо · Greedy algorithms · Two pointers · Prefix Sums · Math

Cubes#7062

Жеңил · Dynamic programming

Chess#7064

Абдан татаал · Greedy algorithms · Graph matchings · Sorting · Scanline / Sweep Line · Binary Search

Servers#7065

Жеңил · Greedy algorithms

Wall#7066

Татаал · Graphs · Geometry · Constructive Algorithms · Sorting

EIT#7067

Жеңил · Sorting · Implementation · Greedy algorithms

Let it Bead#7079

Орточо · Combinatorics · Math · Brute force

Toral Tickets#7090

Орточо · Dynamic programming · Combinatorics

Balls#7091

Абдан жеңил · Greedy algorithms

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