[Codeforces] Round 854 by cybercats (Div. 1 + Div. 2) D2. Hot Start Up (hard version)|PSCodeforces|Problem Solving-Dynamic Programming

Codeforces Round 854 by cybercats (Div. 1 + Div. 2) D2. Hot Start Up (hard version)

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[Codeforces] Round 857 (Div. 1) D. The way home|PSCodeforces|Problem Solving-Graph Theory-Dynamic Programming

Codeforces Round 857 (Div. 1) D. The way home

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[Codeforces] Round 861 (Div. 2) D. Petya, Petya, Petr, and Palindromes|PSCodeforces|Problem Solving-Hash Table-Math-Two Pointer

Codeforces Round 861 (Div. 2) D. Petya, Petya, Petr, and Palindromes

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[Hacker Earth] Vanya and Array|PSHacker Earth|Fenwick Tree-Segment Tree-Problem Solving

Vanya and Array

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[Hacker Earth] Buy and Sell !|PSHacker Earth|Fenwick Tree-Problem Solving-Hash Table

Buy and Sell !

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[Hacker Earth] Velma and Queries|PSHacker Earth|Problem Solving-DFS-Offline Query Technique

Velma and Queries

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[Hacker Earth] The Dragon Type|PSHacker Earth|Problem Solving-Math

The Dragon Type

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[Hacker Earth] Byteland Trip|PSHacker Earth|Problem Solving-Greedy-Union Find

Byteland Trip

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[Codeforces] CodeTON Round 4 (Div. 1 + Div. 2, Rated, Prizes!) E. Monsters|PSCodeforces|Problem Solving-BFS-Heap-Greedy-Union Find

CodeTON Round 4 (Div. 1 + Div. 2, Rated, Prizes!) E. Monsters

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[Codeforces] Round 863 (Div. 3) F. Is It Flower?|PSCodeforces|Problem Solving-DFS-Union Find

Codeforces Round 863 (Div. 3) F. Is It Flower?

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