|
|
7817 |
P213E Two Permutations
|
0 / 0 |
CTSC
|
|
|
7816 |
P214A System of Equations
|
0 / 0 |
普及-
|
|
|
7815 |
P214B Hometask
|
0 / 0 |
普及
|
|
|
7814 |
P215A Bicycle Chain
|
0 / 0 |
普及-
|
|
|
7813 |
P215B Olympic Medal
|
0 / 0 |
普及-
|
|
|
7812 |
P215C Crosses
|
0 / 0 |
提高
|
|
|
7811 |
P215D Hot Days
|
0 / 0 |
普及
|
|
|
7810 |
P215E Periodical Numbers
|
0 / 0 |
提高
|
|
|
7809 |
P216A Tiling with Hexagons
|
0 / 0 |
普及-
|
|
|
7808 |
P216B Forming Teams
|
0 / 0 |
普及
|
|
|
7807 |
P216C Hiring Staff
|
0 / 0 |
普及
|
|
|
7806 |
P216D Spider's Web
|
0 / 0 |
普及
|
|
|
7805 |
P216E Martian Luck
|
0 / 0 |
提高
|
|
|
7804 |
P217A Ice Skating
|
0 / 0 |
普及-
|
|
|
7803 |
P217B Blackboard Fibonacci
|
0 / 0 |
提高
|
|
|
7802 |
P217C Formurosa
|
0 / 0 |
CTSC
|
|
|
7801 |
P217D Bitonix' Patrol
|
0 / 0 |
CTSC
|
|
|
7800 |
P217E Alien DNA
|
0 / 0 |
CTSC
|
|
|
7799 |
P218A Mountain Scenery
|
0 / 0 |
普及-
|
|
|
7798 |
P218B Airport
|
0 / 0 |
普及-
|
|
|
7797 |
P219A k-String
|
0 / 0 |
普及-
|
|
|
7796 |
P219B Special Offer! Super Price 999 Bourles!
|
0 / 0 |
普及-
|
|
|
7795 |
P219C Color Stripe
|
0 / 0 |
普及
|
|
|
7794 |
P219D Choosing Capital for Treeland
|
0 / 0 |
普及
|
|
|
7793 |
P219E Parking Lot
|
0 / 0 |
省选
|
|
|
7792 |
P220A Little Elephant and Problem
|
0 / 0 |
普及-
|
|
|
7791 |
P220B Little Elephant and Array
|
0 / 0 |
普及
|
|
|
7790 |
P220C Little Elephant and Shifts
|
0 / 0 |
提高
|
|
|
7789 |
P220D Little Elephant and Triangle
|
0 / 0 |
NOI
|
|
|
7788 |
P220E Little Elephant and Inversions
|
0 / 0 |
NOI
|
|
|
7787 |
P221A Little Elephant and Function
|
0 / 0 |
普及-
|
|
|
7786 |
P221B Little Elephant and Numbers
|
0 / 0 |
普及-
|
|
|
7785 |
P222A Shooshuns and Sequence
|
0 / 0 |
普及-
|
|
|
7784 |
P222B Cosmic Tables
|
0 / 0 |
普及-
|
|
|
7783 |
P222C Reducing Fractions
|
0 / 0 |
普及
|
|
|
7782 |
P222D Olympiad
|
0 / 0 |
普及
|
|
|
7781 |
P222E Decoding Genome
|
0 / 0 |
普及
|
|
|
7780 |
P223A Bracket Sequence
|
0 / 0 |
普及
|
|
|
7779 |
P223B Two Strings
|
0 / 0 |
普及
|
|
|
7778 |
P223C Partial Sums
|
0 / 0 |
普及
|
|
|
7777 |
P223D Spider
|
0 / 0 |
CTSC
|
|
|
7776 |
P223E Planar Graph
|
0 / 0 |
CTSC
|
|
|
7775 |
P224A Parallelepiped
|
0 / 0 |
普及-
|
|
|
7774 |
P224B Array
|
0 / 0 |
普及
|
|
|
7773 |
P225A Dice Tower
|
0 / 0 |
普及-
|
|
|
7772 |
P225B Well-known Numbers
|
0 / 0 |
普及
|
|
|
7771 |
P225C Barcode
|
0 / 0 |
普及
|
|
|
7770 |
P225D Snake
|
0 / 0 |
省选
|
|
|
7769 |
P225E Unsolvable
|
0 / 0 |
提高
|
|
|
7768 |
P226A Flying Saucer Segments
|
0 / 0 |
普及-
|
|
|
7767 |
P226B Naughty Stone Piles
|
0 / 0 |
普及
|
|
|
7766 |
P226C Anniversary
|
0 / 0 |
NOI
|
|
|
7765 |
P226D The table
|
0 / 0 |
提高
|
|
|
7764 |
P226E Noble Knight's Path
|
0 / 0 |
CTSC
|
|
|
7763 |
P227A Where do I Turn?
|
0 / 0 |
普及-
|
|
|
7762 |
P227B Effective Approach
|
0 / 0 |
普及-
|
|
|
7761 |
P228A Is your horseshoe on the other hoof?
|
0 / 0 |
普及-
|
|
|
7760 |
P228B Two Tables
|
0 / 0 |
普及-
|
|
|
7759 |
P228C Fractal Detector
|
0 / 0 |
提高
|
|
|
7758 |
P228D Zigzag
|
0 / 0 |
提高
|
|
|
7757 |
P228E The Road to Berland is Paved With Good Intentions
|
0 / 0 |
普及
|
|
|
7756 |
P229A Shifts
|
0 / 0 |
普及
|
|
|
7755 |
P229B Planets
|
0 / 0 |
普及
|
|
|
7754 |
P229C Triangles
|
0 / 0 |
普及
|
|
|
7753 |
P229D Towers
|
0 / 0 |
提高
|
|
|
7752 |
P229E Gifts
|
0 / 0 |
CTSC
|
|
|
7751 |
P230A Dragons
|
0 / 0 |
普及-
|
|
|
7750 |
P230B T-primes
|
0 / 0 |
普及-
|
|
|
7721 |
P231A Team
|
0 / 0 |
普及-
|
|
|
7720 |
P231B Magic, Wizardry and Wonders
|
0 / 0 |
普及
|
|
|
7719 |
P231C To Add or Not to Add
|
0 / 0 |
普及
|
|
|
7718 |
P231D Magic Box
|
0 / 0 |
普及
|
|
|
7717 |
P231E Cactus
|
0 / 0 |
提高
|
|
|
7716 |
P232A Cycles
|
0 / 0 |
普及
|
|
|
7715 |
P232B Table
|
0 / 0 |
普及
|
|
|
7714 |
P232C Doe Graphs
|
0 / 0 |
CTSC
|
|
|
7713 |
P232D Fence
|
0 / 0 |
CTSC
|
|
|
7712 |
P232E Quick Tortoise
|
0 / 0 |
CTSC
|
|
|
7711 |
P233A Perfect Permutation
|
0 / 0 |
普及-
|
|
|
7710 |
P233B Non-square Equation
|
0 / 0 |
普及-
|
|
|
7709 |
P234A Lefthanders and Righthanders
|
0 / 0 |
普及-
|
|
|
7708 |
P234B Reading
|
0 / 0 |
普及-
|
|
|
7707 |
P234C Weather
|
0 / 0 |
普及-
|
|
|
7706 |
P234D Cinema
|
0 / 0 |
普及
|
|
|
7705 |
P234E Champions' League
|
0 / 0 |
普及
|
|
|
7704 |
P234F Fence
|
0 / 0 |
普及
|
|
|
7703 |
P234G Practice
|
0 / 0 |
普及
|
|
|
7702 |
P234H Merging Two Decks
|
0 / 0 |
提高
|
|
|
7701 |
P235A LCM Challenge
|
0 / 0 |
普及
|
|
|
7700 |
P235B Let's Play Osu!
|
0 / 0 |
提高
|
|
|
7699 |
P235C Cyclical Quest
|
0 / 0 |
CTSC
|
|
|
7698 |
P235D Graph Game
|
0 / 0 |
CTSC
|
|
|
7697 |
P235E Number Challenge
|
0 / 0 |
CTSC
|
|
|
7696 |
P236A Boy or Girl
|
0 / 0 |
普及-
|
|
|
7695 |
P236B Easy Number Challenge
|
0 / 0 |
普及-
|
|
|
7694 |
P237A Free Cash
|
0 / 0 |
普及-
|
|
|
7693 |
P237B Young Table
|
0 / 0 |
普及
|
|
|
7692 |
P237C Primes on Interval
|
0 / 0 |
普及
|
|
|
7691 |
P237D T-decomposition
|
0 / 0 |
提高
|
|
|
7690 |
P237E Build String
|
0 / 0 |
提高
|
