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Difficulty
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1319
Duelists
Easy
1347
Divisors
Medium
1352
The sum of primes
Very easy
1355
Number of N-digit numbers containing the digit 7
Very easy
1357
The number of zeros at the end of a number
Very easy
1358
How many Fibonacci numbers
Medium
1359
Side of the square
Very easy
1367
Sky Code
Very easy
1372
Lucky Numbers
Very easy
1373
GCD Determinant
Easy
1402
Shares
Very easy
1408
Bananas
Hard
1414
Pebbles
Very easy
1421
Ships Approaching
Medium
1422
Homework
Medium
1434
The Little Match Girl
Easy
1442
One-dimensional Clickomania
Medium
1446
Game with Coins
Medium
1450
Centaur
Very easy
1451
Points symmetry
Very easy
1456
Sirko and Liutyi
Medium
1461
Fortune Teller
Very easy
1468
TripleK
Easy
1491
Necklace
Easy
1492
Races
Easy
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