[Codeforces] Helvetic Coding Contest 2019 online mirror (teams allowed, unrated) E1. Daleks` Invasion (easy)|PSCodeforces|Problem Solving-Union Find

Helvetic Coding Contest 2019 online mirror (teams allowed, unrated) E1. Daleks’ Invasion (easy)

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[CS Academy] Rhombus|PSCS Academy|Problem Solving-Greedy-Geometry

Rhombus

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[CS Academy] Restricted Arrays|PSCS Academy|Problem Solving-Two Pointer-Combinatorics-Union Find

Restricted Arrays

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[CS Academy] Rectangle Fit|PSCS Academy|Sorting-Fenwick Tree-Problem Solving-Geometry

Rectangle Fit

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[CS Academy] Race Cars|PSCS Academy|Problem Solving-Binary Search

Race Cars

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[CS Academy] Quadrants|PSCS Academy|Problem Solving-Geometry

Quadrants

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[Codeforces] Educational Round 69 (Rated for Div. 2) D. Yet Another Subarray Problem|PSCodeforces|Problem Solving-Hash Table-Prefix Sum

Educational Codeforces Round 69 (Rated for Div. 2) D. Yet Another Subarray Problem

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[Codeforces] Round 578 (Div. 2) D. White Lines|PSCodeforces|Fenwick Tree-Problem Solving-Heap

Codeforces Round 578 (Div. 2) D. White Lines

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[Codeforces] Educational Round 70 (Rated for Div. 2) D. Print a 1337-string...|PSCodeforces|Problem Solving-Binary Search

Educational Codeforces Round 70 (Rated for Div. 2) D. Print a 1337-string…

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[Codeforces] Round 580 (Div. 1) B. Shortest Cycle|PSCodeforces|Problem Solving-BFS-Cycle Detection Algorithm

Codeforces Round 580 (Div. 1) B. Shortest Cycle

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