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Problems

Topics
Difficulty
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7260
Archaeologists
Easy
7261
Difficult path
Very easy
7262
A coincidence
Very easy
7263
A full set
Easy
7264
A fish lunch
Easy
7265
The secret code
Easy
7266
Dura Lex
Easy
7267
A path to knowledge
Easy
7268
A granite of science
Very hard
7269
Probable diagnosis
Hard
7270
Zoological experiment
Easy
7271
A game
Easy
7272
A dangerous game
Hard
7273
Hash-table
Hard
7286
Lexicographic order
Hard
7287
Segments
Medium
7288
Storks
Very easy
7289
System of equations
Very easy
7290
Lazy student
7291
Linguist
Easy
7292
Stepan's Purchases
Very easy
7293
Traffic Rules
7294
Stepan's Alarm Clocks
Very easy
7295
Rectangle and Paths
Medium
7296
Stepan and Matches
Very easy
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