[Hacker Earth] Knapsacks|PSHacker Earth|Problem Solving-0/1 Knapsack

Knapsacks

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[Hacker Earth] Number of overtakes|PSHacker Earth|Sorting-Fenwick Tree-Problem Solving

Number of overtakes

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[Hacker Earth] Optimal Division|PSHacker Earth|Problem Solving-Binary Search-Bit Manipulation

Optimal Division

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[Hacker Earth] Coloring trees|PSHacker Earth|Problem Solving-DFS

Coloring trees

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[Hacker Earth] Fixed parities|PSHacker Earth|Problem Solving-Bit Manipulation

Fixed parities

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[Codeforces] Round 620 (Div. 2) E. 1-Trees and Queries|PSCodeforces|Lowest Common Ancestor-Problem Solving

Codeforces Round 620 (Div. 2) E. 1-Trees and Queries

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[Codeforces] Round 624 (Div. 3) D. Three Integers|PSCodeforces|Problem Solving-Math

Codeforces Round 624 (Div. 3) D. Three Integers

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[Codeforces] CodeCraft-20 (Div. 2) D. Nash Matrix|PSCodeforces|Problem Solving-Graph Theory-BFS-Greedy

CodeCraft-20 (Div. 2) D. Nash Matrix

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[Codeforces] Round 625 (Div. 1, based on Technocup 2020 Final Round) C. World of Darkraft: Battle for Azathoth|PSCodeforces|Problem Solving-Two Pointer-Lazy Propagation Segment Tree

Codeforces Round 625 (Div. 1, based on Technocup 2020 Final Round) C. World of Darkraft: Battle for Azathoth

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[Codeforces] Round 639 (Div. 1) B. Monopole Magnets|PSCodeforces|Problem Solving-Union Find

Codeforces Round 639 (Div. 1) B. Monopole Magnets

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