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Problems

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Difficulty
Sort by
1112
Queen, Rook and Knight
Easy
1116
Product of digits
Easy
1123
Lucky Number
Very easy
1136
Remakes
Easy
1145
Unfair Division
Easy
1150
K-th Number (Easy)
Very easy
1159
Birthday
Very easy
1160
Warm-up
Very easy
1181
Mint
Very easy
1186
Arithmetically Challenged
Very easy
1193
Windows
Very easy
1201
Rubik's Cube
Hard
1215
Rock, Paper, or Scissors?
Very easy
1222
"Bubble Gum, Bubble Gum..."
Very easy
1226
Foreign Exchange
Very easy
1236
Dictionary of Banned Ingredients
Medium
1270
Prime Sums
Easy
1275
Hop - Don`t Walk
Medium
1295
The Game of Wisdom
Easy
1301
Lamps Grid
Very easy
1330
Tobo or not Tobo
Easy
1347
Divisors
Medium
1358
How many Fibonacci numbers
Medium
1372
Lucky Numbers
Very easy
1380
Palindometer
Very easy
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