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Problems
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Problems

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Difficulty
Sort by
1474
Broken Clock
Very easy
1475
Unbirthdays
Very easy
1490
Moon
Easy
1493
Robot
Medium
1496
Water
Hard
1545
Can You Solve It?
Very easy
1546
Ants
Very easy
1548
Diagonal
Very easy
1549
Team Game
Medium
1562
Modular Equations
Very easy
1572
Coupons
Medium
1576
The Lost Gift
Medium
1586
The postfix record
Easy
1587
Barbershop
Very easy
1588
Barge
Easy
1590
Birthday 2
Medium
1594
Encoded Sum
Very easy
1597
Grouped Word
Easy
1598
Food Collecting
Very easy
1603
The sum of digits
Very easy
1604
The product of even digits in a number
Very easy
1605
Second digit of the number
Very easy
1606
The sum of the first and the last digits in the number
Very easy
1607
The number in reverse order
Very easy
1608
The number-palindrome
Very easy
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