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Problems

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Difficulty
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1418
Queen
Easy
1419
The Shortest Path of the Knight
Hard
1420
The shortest path of two knights
Easy
1421
Ships Approaching
1422
Homework
Medium
1423
Eclipse
Easy
1424
Bus Routes
Hard
1425
Network Reliability
Easy
1426
Shooting Range
Very easy
1427
Calculator
1428
Students
Very easy
1429
Comparison of Numbers
Very easy
1430
Dad is strong...
Very easy
1431
Train Security
Hard
1432
The tanks are coming!
Hard
1433
New Year's Snowfall
Very hard
1434
The Little Match Girl
Easy
1435
Matchbox
Medium
1436
Happy Bottle
Very easy
1437
The code of the lock
Very easy
1438
Upside Down Clock
1439
Parquet for an Oligarch
Medium
1440
Beautyful squares
Medium
1441
Decomposition of a Number
Easy
1442
One-dimensional Clickomania
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