[CS Academy] Right Triangles|PSCS Academy|Sorting-Fenwick Tree-Problem Solving-Geometry

Right Triangles

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[CS Academy] Recursive String|PSCS Academy|Problem Solving-Dynamic Programming-Divide and Conquer

Recursive String

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[CS Academy] Rectangle Path|PSCS Academy|Problem Solving-BFS-Prefix Matrix

Rectangle Path

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[CS Academy] Parallel Lines|PSCS Academy|Sorting-Problem Solving-Greedy-Union Find-Geometry

Parallel Lines

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[CS Academy] One Way Streets|PSCS Academy|Lowest Common Ancestor-Problem Solving-Dynamic Programming-Biconnected Component-Union Find

One Way Streets

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[Codeforces] Round 869 (Div. 1) B. Fish Graph|PSCodeforces|Problem Solving-DFS

Codeforces Round 869 (Div. 1) B. Fish Graph

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[Codeforces] Round 866 (Div. 1) B. The Butcher|PSCodeforces|Sorting-Problem Solving-Two Pointer-Greedy-Geometry

Codeforces Round 866 (Div. 1) B. The Butcher

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[Codeforces] Educational Round 147 (Rated for Div. 2) D. Black Cells|PSCodeforces|Problem Solving-Greedy-Merge Interval

Educational Codeforces Round 147 (Rated for Div. 2) D. Black Cells

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[Codeforces] Round 868 (Div. 2) D. Unique Palindromes|PSCodeforces|Problem Solving-Greedy

Codeforces Round 868 (Div. 2) D. Unique Palindromes

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[Codeforces] Round 879 (Div. 2) D. Survey in Class|PSCodeforces|Problem Solving-Greedy

Codeforces Round 879 (Div. 2) D. Survey in Class

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