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Problems

Binary Search
Difficulty
Sort by
1198
Communication Channels
1225
Black Box
Very easy
1251
Trick or Treat
Medium
1260
Stammering Aliens
Easy
1294
Weigh-cones
Very easy
1302
Almost Prime Numbers
Very easy
1366
Stock Exchange
Very easy
1383
Not One Bit More
Medium
1497
Long root
Medium
1506
Crossed Ladders
1516
Constructing BST
Very easy
1522
Optimal Binary Search Tree
1542
The ? 1 ? 2 ? ... ? n = k problem
1566
Gergs cake
Medium
1595
Fill the Box
Very easy
1705
A bit sequence of the Arnold
Very easy
1708
Vasya vs. Delinya
1817
Image Compression
Very easy
1857
Vinnimobil
Easy
1920
Friendly Points
Easy
2001
Device Survey
Very easy
2004
Routing
Very hard
2005
Weighing 2
2008
Tourist
Medium
2020
Subsequence
Medium
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