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Problems

Topics
Difficulty
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5614
Fire Signals
Hard
5615
Mundial
Medium
5616
Algorithm of Professor Ivanov
Very easy
5617
GOV-internship 3
Medium
5618
Palindromes and Super Abilities
Very easy
5619
Stars
5621
Find a multiple
Easy
5622
Labyrinth
Very easy
5623
Queens in peaceful positions
Easy
5624
Cross-stitch
5626
Persistent Data Structures
Very easy
5628
Three-digit number
Easy
5650
Self-Assembly
Easy
5651
Hey, Better Bettor
5652
Surely You Congest
Very hard
5653
Factors
Very easy
5654
Harvard
Very hard
5655
Low Power
Very hard
5656
Map Tiles
Very hard
5657
Security Vault System
Very hard
5658
Pirate Chest
Very hard
5659
Pollution Solution
Very hard
5660
Up a Tree
Very hard
5661
Nonoptimal Assignments
5662
Cryptography
Very easy
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