|
|
4780 |
P625A Guest From the Past
|
0 / 0 |
(无) |
|
|
4777 |
P625D Finals in arithmetic
|
0 / 0 |
(无) |
|
|
4774 |
P626B Cards
|
0 / 0 |
(无) |
|
|
4773 |
P626C Block Towers
|
0 / 0 |
(无) |
|
|
4771 |
P626E Simple Skewness
|
0 / 0 |
(无) |
|
|
4769 |
P626G Raffles
|
0 / 0 |
(无) |
|
|
4768 |
P627A XOR Equation
|
0 / 0 |
(无) |
|
|
4762 |
P628A Tennis Tournament
|
0 / 0 |
(无) |
|
|
4750 |
P630B Moore's Law
|
0 / 0 |
(无) |
|
|
4749 |
P630C Lucky Numbers
|
0 / 0 |
(无) |
|
|
4748 |
P630D Hexagons!
|
0 / 0 |
(无) |
|
|
4747 |
P630E A rectangle
|
0 / 0 |
(无) |
|
|
4746 |
P630F Selection of Personnel
|
0 / 0 |
(无) |
|
|
4745 |
P630G Challenge Pennants
|
0 / 0 |
(无) |
|
|
4744 |
P630H Benches
|
0 / 0 |
(无) |
|
|
4743 |
P630I Parking Lot
|
0 / 0 |
(无) |
|
|
4742 |
P630J Divisibility
|
0 / 0 |
(无) |
|
|
4741 |
P630K Indivisibility
|
0 / 0 |
(无) |
|
|
4740 |
P630L Cracking the Code
|
0 / 0 |
(无) |
|
|
4739 |
P630M Turn
|
0 / 0 |
(无) |
|
|
4738 |
P630N Forecast
|
0 / 0 |
(无) |
|
|
4735 |
P630Q Pyramids
|
0 / 0 |
(无) |
|
|
4734 |
P630R Game
|
0 / 0 |
(无) |
|
|
4725 |
P632D Longest Subsequence
|
0 / 0 |
(无) |
|
|
4724 |
P632E Thief in a Shop
|
0 / 0 |
(无) |
|
|
4722 |
P633A Ebony and Ivory
|
0 / 0 |
(无) |
|
|
4721 |
P633B A Trivial Problem
|
0 / 0 |
(无) |
|
|
4719 |
P633D Fibonacci-ish
|
0 / 0 |
(无) |
|
|
4716 |
P633G Yash And Trees
|
0 / 0 |
(无) |
|
|
4708 |
P638A Home Numbers
|
0 / 0 |
(无) |
|
|
4702 |
P639C Bear and Polynomials
|
0 / 0 |
(无) |
|
|
4700 |
P639E Bear and Paradox
|
0 / 0 |
(无) |
|
|
4695 |
P641D Little Artem and Random Variable
|
0 / 0 |
(无) |
|
|
4687 |
P643E Bear and Destroying Subtrees
|
0 / 0 |
(无) |
|
|
4686 |
P643F Bears and Juice
|
0 / 0 |
(无) |
|
|
4680 |
P645B Mischievous Mess Makers
|
0 / 0 |
(无) |
|
|
4676 |
P645F Cowslip Collections
|
0 / 0 |
(无) |
|
|
4674 |
P650A Watchmen
|
0 / 0 |
(无) |
|
|
4669 |
P651A Joysticks
|
0 / 0 |
(无) |
|
|
4667 |
P652A Gabriel and Caterpillar
|
0 / 0 |
(无) |
|
|
4662 |
P652F Ants on a Circle
|
0 / 0 |
(无) |
|
|
4655 |
P653G Move by Prime
|
0 / 0 |
(无) |
|
|
4646 |
P659A Round House
|
0 / 0 |
(无) |
|
|
4643 |
P659D Bicycle Race
|
0 / 0 |
(无) |
|
|
4639 |
P660A Co-prime Array
|
0 / 0 |
(无) |
|
|
4635 |
P660E Different Subsets For All Tuples
|
0 / 0 |
(无) |
|
|
4625 |
P662A Gambling Nim
|
0 / 0 |
(无) |
|
|
4623 |
P662C Binary Table
|
0 / 0 |
(无) |
|
|
4622 |
P662D International Olympiad
|
0 / 0 |
(无) |
|
|
4620 |
P663A Rebus
|
0 / 0 |
(无) |
