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Skyscraper#11818

Örän kyn · Dynamic programming · Sorting · Combinatorics

Xor Sum#11819

Kyn · Fenwick Tree · Prefix Sums · Bitwise Operations · Sorting

Beach#11820

Örän ýeňil · For Beginners · Math

Investments#11821

Örän ýeňil · Implementation

Sensors#11822

Kyn · Constructive Algorithms · Number theory · Math

Triples#11823

Ýeňil · Math · Number theory

Substrings#11824

Orta · Prefix Sums · Hashing · Combinatorics

Towers#11825

Kyn · Binary Search · Sorting · Greedy algorithms · Two pointers · Data Structures

Islands#11826

Kyn · Graphs · Depth-first Search · Greedy algorithms · Data Structures

Watermelons#11828

Kyn · Prefix Sums · Sorting

Anagram groups#11829

Ýeňil · Strings · Implementation · Sorting

Epic Coloring#11836

Orta · Math · Combinatorics · Number theory

XORSUM#11837

Kyn · Bitwise Operations · Math · Number theory

333 Permutation#11838

Kyn · Constructive Algorithms · Number theory · Greedy algorithms

Constructive Fun#11839

Kyn · Constructive Algorithms · Dynamic programming · Knapsack · Math

Tree Sum is Fun II#11840

Örän kyn · Dynamic programming · Number theory · Combinatorics · Bitmasks · Trees · Math

Good Dish#11841

Orta · Greedy algorithms · Math

Super-rocky Terrain#11842

Ýeňil · Sorting · Greedy algorithms · Constructive Algorithms

Catch me if you can#11843

Kyn · Constructive Algorithms · Math

Kvantocryptarithm#11844

Kyn · Number theory · Combinatorics

Countdown#11845

Orta · Math · Number theory · Combinatorics

Chronicles of the Archivist R2-A2#11846

Orta · Dynamic programming · Strings · Math

Wall of Mordor --- Mission Impossible#11847

Kyn · Sorting · Data Structures · Prefix Sums

The Great Chambers of the Pyramid of Cheops#11848

Orta · Breadth-first Search · Bitmasks

Unique ID#11853

Ýeňil · Hashing

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