[Codeforces] Round 620 (Div. 2) D. Shortest and Longest LIS|PSCodeforces|Problem Solving-Greedy

Codeforces Round 620 (Div. 2) D. Shortest and Longest LIS

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[AtCoder] D - Writing a Numeral|PSAtCoder|Problem Solving-Math

D - Writing a Numeral

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[AtCoder] E - Kth Takoyaki Set|PSAtCoder|Problem Solving-Greedy

E - Kth Takoyaki Set

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[AtCoder] D - M<=ab|PSAtCoder|Problem Solving-Math

D - M<=ab

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[AtCoder] D - Marking|PSAtCoder|Problem Solving-Math-Euclidean Algorithm

D - Marking

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[AtCoder] E - Find Permutation|PSAtCoder|Problem Solving-Topological Sort

E - Find Permutation

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[AtCoder] D - Tying Rope|PSAtCoder|Problem Solving-Graph Theory-DFS-Cycle Detection Algorithm

D - Tying Rope

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[Codeforces] CodeCraft-20 (Div. 2) C. Primitive Primes|PSCodeforces|Problem Solving-Math

CodeCraft-20 (Div. 2) C. Primitive Primes

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[Codeforces] Round 627 (Div. 3) F. Maximum White Subtree|PSCodeforces|Problem Solving-Dynamic Programming-DFS

Codeforces Round 627 (Div. 3) F. Maximum White Subtree

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[Codeforces] Educational Round 84 (Rated for Div. 2) E. Count The Blocks|PSCodeforces|Problem Solving-Math

Educational Codeforces Round 84 (Rated for Div. 2) E. Count The Blocks

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