[Hacker Earth] Color the bricks|PSHacker Earth|Problem Solving-Combinatorics

Color the bricks

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[Hacker Earth] Lost in a city|PSHacker Earth|Problem Solving-BFS

Lost in a city

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[Codeforces] Round 573 (Div. 1) D. Tokitsukaze and Strange Rectangle|PSCodeforces|Sorting-Fenwick Tree-Problem Solving-Two Pointer-Geometry

Codeforces Round 573 (Div. 1) D. Tokitsukaze and Strange Rectangle

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[Codeforces] Round 576 (Div. 1) C. Matching vs Independent Set|PSCodeforces|Problem Solving-Graph Theory-Greedy

Codeforces Round 576 (Div. 1) C. Matching vs Independent Set

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[Codeforces] Round 578 (Div. 2) E. Compress Words|PSCodeforces|Problem Solving-KMP

Codeforces Round 578 (Div. 2) E. Compress Words

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[Codeforces] Round 581 (Div. 2) D2. Kirk and a Binary String (hard version)|PSCodeforces|Problem Solving-Greedy

Codeforces Round 581 (Div. 2) D2. Kirk and a Binary String (hard version)

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[Codeforces] Round 581 (Div. 2) D1. Kirk and a Binary String (easy version)|PSCodeforces|Problem Solving-Greedy

Codeforces Round 581 (Div. 2) D1. Kirk and a Binary String (easy version)

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[Hacker Earth] Integer distribution|PSHacker Earth|Problem Solving-Dynamic Programming-Bit Manipulation

Integer distribution

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[Hacker Earth] Graphs|PSHacker Earth|Problem Solving-Graph Theory-BFS

Graphs

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[Hacker Earth] Lexicographically minimal string|PSHacker Earth|Problem Solving-Union Find

Lexicographically minimal string

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