[Codeforces] Beta Round 61 (Div. 2) D. Petya and His Friends|PSCodeforces|Problem Solving-Math

Codeforces Beta Round 61 (Div. 2) D. Petya and His Friends

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[Codeforces] All-Ukrainian School Olympiad in Informatics D. Plus and xor|PSCodeforces|Problem Solving-Math

All-Ukrainian School Olympiad in Informatics D. Plus and xor

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[Codeforces] All-Ukrainian School Olympiad in Informatics E. Points|PSCodeforces|Problem Solving-Math

All-Ukrainian School Olympiad in Informatics E. Points

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[CS Academy] Cinema Seats|PSCS Academy|Problem Solving-Sliding Window

Cinema Seats

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[CS Academy] Choose the Price|PSCS Academy|Problem Solving-Greedy

Choose the Price

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[CS Academy] Build the Towers|PSCS Academy|Problem Solving-Greedy

Build the Towers

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[CS Academy] Building Bridges|PSCS Academy|Segment Tree-Problem Solving-Dynamic Programming-Li Chao Tree

Building Bridges

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[CS Academy] Bob`s Tree|PSCS Academy|Lowest Common Ancestor-Segment Tree-Problem Solving

Bob’s Tree

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[AtCoder] D - Black and White Tree|PSAtCoder|Problem Solving-Game Theory

D - Black and White Tree

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[AtCoder] F - Lotus Leaves|PSAtCoder|Problem Solving-Maximum Flow

F - Lotus Leaves

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