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Problems

Brute force
Difficulty
Sort by
245
The best approximation of pi
Very easy
257
Gambling
Very easy
278
Piramid base
Very hard
287
Archery
Medium
304
Earthquake Emendations
Easy
307
Honed Hops
Medium
314
A + B?
Very easy
340
Once - peas, two - peas...
Very easy
345
Progress in Artillery
Medium
366
Equal numbers
Easy
382
Pear
Very easy
394
Purchase on credit
Very easy
395
"Prime" numbers
Very easy
408
Fence
Very easy
412
Jammed
Easy
421
Yo-Yo
Very easy
424
Rectangles
Very easy
426
Division
Medium
440
Counterfeit check
Easy
445
Excursion
Hard
447
Many number
Hard
450
Spiral
Easy
454
Changeling
Very hard
461
Triangles
Medium
473
Height
Very easy
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