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Brute force
Difficulty
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2930
The square of a number of units
Hard
2972
Biprime numbers
Very easy
2985
Dial
Easy
3003
Suitable pairs
Easy
3015
Camouflaged camp
Very hard
3026
Rock Skipping
3027
Military parade
Very easy
3029
Digital row
Very hard
3031
Single-letter palindrome
Medium
3036
Mutation
Easy
3044
Avoiding a disaster
3048
Insidious Branding
Hard
3053
Numbers Game
Hard
3056
The Conquest of the Kingdom
Easy
3064
Alphabet Soup
Very easy
3070
Non-negative Partial Sums
3097
Fun Coloring
3101
Coalescing Continents
3106
Laser Tag
3108
Su-domino-ku
3109
Refrigerator Magnets
3110
Shut the Box
3119
Secret Island Base
Easy
3128
Ultimate Finishing Strike
3132
Treasure Map
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