[Codeforces] VK Cup 2012 Round 1 B. Discounts|PSCodeforces|Problem Solving-Heap-Greedy

VK Cup 2012 Round 1 B. Discounts

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[Codeforces] VK Cup 2012 Round 2 A. Substring and Subsequence|PSCodeforces|Problem Solving-Dynamic Programming

VK Cup 2012 Round 2 A. Substring and Subsequence

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[System Design] Merkle tree|System DesignEtc|System Design

Merkle tree

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[AtCoder] D - Two Sequences|PSAtCoder|Problem Solving-Numeric Theory

D - Two Sequences

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[AtCoder] C - Remainder Game|PSAtCoder|Problem Solving-Dynamic Programming-Math

C - Remainder Game

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[AtCoder] E - Sorted and Sorted|PSAtCoder|Problem Solving-Dynamic Programming

E - Sorted and Sorted

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[AtCoder] D - Isomorphism Freak|PSAtCoder|Problem Solving-Graph Theory

D - Isomorphism Freak

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[AtCoder] C - Interval Game|PSAtCoder|Problem Solving-Greedy

C - Interval Game

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[Codeforces] VK Cup 2012 Round 3 A. Variable, or There and Back Again|PSCodeforces|Problem Solving-DFS

VK Cup 2012 Round 3 A. Variable, or There and Back Again

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[Codeforces] Round 114 (Div. 2) B. Wizards and Minimal Spell|PSCodeforces|Problem Solving-Array

Codeforces Round 114 (Div. 2) B. Wizards and Minimal Spell

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