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Problems

Topics
Difficulty
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1321
Lucky Five
Very easy
1322
Matrix product
Medium
1323
Triangles in the polygon
Very easy
1324
World Championship
Easy
1325
Vas`kin track
Very easy
1326
Hockey Tournament Medals
Very easy
1327
Rooks on a chessboard
Medium
1328
Drawings on a piece of paper in the box
Easy
1329
Partition of the set
Hard
1330
Tobo or not Tobo
Easy
1331
Adding Sevens
1332
Match Maker
Very easy
1333
Adding up Triangles
Very easy
1334
Relax! It's just a game
Very easy
1335
Einbahnstrasse
Very easy
1336
Think I’ll Buy Me a Football Team
Very easy
1337
Musical Chairs
Very easy
1338
I Speak Whales
Hard
1339
A Day at the Races
Very easy
1340
Diamond
Very easy
1341
LC-Display
Very easy
1342
Periodic Strings
Very easy
1343
Bad Substring
1344
Personal files
Very easy
1345
Spartakiad for the Lazy
Very easy
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