ID 题目 显示标签 隐藏标签 AC / 尝试 难度
3090 OHANIBTR   Ohani And Binary Search Tree 0 / 0 (无)
3253 OHANIGAME   Ohani And The Game 0 / 0 (无)
3089 OHANISER   Ohani And The Series 0 / 0 (无)
638 OIL   Toil for Oil 0 / 0 (无)
745 OILCOMP   Oil Company 0 / 0 (无)
1706 OKRET   Okret 0 / 0 (无)
1496 OLOLO   Onotole needs your help 0 / 0 (无)
3428 OMWG   One more weird game 0 / 0 (无)
2119 ONBRIDGE   Online Bridge Searching 0 / 0 (无)
574 ONEINSTR   One Instruction Computer Simulator 0 / 0 (无)
2446 ONEXLIS   One X LIS 0 / 0 (无)
232 ONEZERO   Ones and zeros 0 / 0 (无)
3846 ONORIVER1   Ono at the river 1 0 / 0 (无)
4 ONP   Transform the Expression 0 / 0 (无)
1432 ONTIME   Just on Time 0 / 0 (无)
2812 OPBIT   Operation Bits 0 / 0 (无)
2277 OPCPIZZA   Pizzamania 0 / 0 (无)
2292 OPCTRIP   The Trip 0 / 0 (无)
3721 OPMODULO   "Operation - Modulo" 0 / 0 (无)
966 OPTCUT   Chặt cây 0 / 0 (无)
334 OPTM   Optimal Marks 0 / 0 (无)
415 OPTSUB   Optimal Connected Subset 0 / 0 (无)
165 ORDERS   Ordering the Soldiers 0 / 0 (无)
775 ORDERSET   Order statistic set 0 / 0 (无)
3419 ORDSUM23   Sums of 2 and 3 0 / 0 (无)
2770 ORGNZ   Organizator 0 / 0 (无)
386 ORIGLIFE   Origin of Life 0 / 0 (无)
819 OROSNAKE   Ouroboros Snake 0 / 0 (无)
525 ORZ   Nuclear Plants 0 / 0 (无)
1536 OSPROB1   Operating System Problems (Task Scheduling) 0 / 0 (无)
991 OTOCI   OTOCI 0 / 0 (无)
2024 OTOY1   One Theorem, One Year 0 / 0 (无)
2722 OU7   Fone Frequencies 0 / 0 (无)
3222 OVERLAP   Overlapping Words 0 / 0 (无)
3776 OVGDEL   Good Elements 0 / 0 (无)
3788 OVICUMSUM   A Cumulative Sum Problem 0 / 0 (无)
3789 OVISLARSUM   Large Sum 0 / 0 (无)
2418 OVOXO   Tic-tac-toe 3 0 / 0 (无)
1122 PA06ANT   Ant 0 / 0 (无)
1726 PAAAARTY   Party! 0 / 0 (无)
2257 PACKRECT   Packing Rectangles 0 / 0 (无)
852 PAGAIN   Prime Again 0 / 0 (无)
739 PAINTBLC   Painting Blocks (Act II) 0 / 0 (无)
738 PAINTBLK   Painting Blocks (Act I) 0 / 0 (无)
130 PAINTTMP   Paint templates 0 / 0 (无)
1807 PAINTWAL   Paint on a Wall 0 / 0 (无)
3358 PAIRDIV2   Pair Divisible 2 0 / 0 (无)
1151 PAIRGRPH   A Pair of Graphs 0 / 0 (无)
301 PAIRINT   Pairs of Integers 0 / 0 (无)
1172 PAIRSORT   Double Sorting 0 / 0 (无)
1832 PAIRSUM   Sum of Pairwise Products 0 / 0 (无)
385 PALACE   Accomodate the palace 0 / 0 (无)
909 PALDR   Even Palindrome 0 / 0 (无)
767 PALIM   Yet Another Longest Palindrome Problem 0 / 0 (无)
5 PALIN   The Next Palindrome 0 / 0 (无)
1938 PALINDNA   Palindromic DNA 0 / 0 (无)
3710 PALMKR   Palindrome Maker 0 / 0 (无)
758 PALNUM   Palindromic Number 0 / 0 (无)
3816 PALOVE   Pandas are the best Lovers 0 / 0 (无)
3356 PALPRIM   Palindromic Primes (Hard) 0 / 0 (无)
129 PALSEC   Choosing a Palindromic Sequence 0 / 0 (无)
2990 PAML   Popeye and the magical land 0 / 0 (无)
1433 PANCAKES   Delicious Pancakes 0 / 0 (无)
160 PANIC   Panic in the Plazas 0 / 0 (无)
1218 PARADOX   Paradox 0 / 0 (无)
3603 PARAG   Paragliding Trip 0 / 0 (无)
2622 PARCARD1   Partition function (EASY) 0 / 0 (无)
2623 PARCARD2   Partition function (HARD) 0 / 0 (无)
2022 PAREN   COUNT PAREN 0 / 0 (无)
847 PARITY   Parity 0 / 0 (无)
1617 PARKET1   PARKET 0 / 0 (无)
794 PARKINGL   Parking Lot 0 / 0 (无)
1953 PARSUMS   Nonnegative Partial Sums 0 / 0 (无)
115 PARTIT   Partition 0 / 0 (无)
1347 PARTPAL   Partial Palindrome 0 / 0 (无)
283 PARTPALI   Particular Palindromes 0 / 0 (无)
1601 PARTPLNE   Partitioning the plane 0 / 0 (无)
392 PARTSUM   Partial Sums 0 / 0 (无)
87 PARTY   Party Schedule 0 / 0 (无)
725 PARTY2   Party of Cloaked Killers 0 / 0 (无)
2488 PARTYTIM   Party Time 0 / 0 (无)
853 PATHEADS   Patting Heads 0 / 0 (无)
3367 PATHGAME   Path Game 0 / 0 (无)
1722 PATT   Pattern Matching 0 / 0 (无)
1212 PATULJCI   Snow White and the N dwarfs 0 / 0 (无)
3175 PAUL2   A conjecture of Paul Erdős (hard) 0 / 0 (无)
2984 PAUWS   Pair and unpair weightest string 0 / 0 (无)
108 PAYING   Paying in Byteland 0 / 0 (无)
355 PB   Parking Bay 0 / 0 (无)
2358 PBBN2   Print Big Binary Numbers 0 / 0 (无)
1243 PBCGAME   PBCGAME 0 / 0 (无)
1407 PBOARD   Blocks for kids 0 / 0 (无)
1465 PC8C   Cave Crisis 0 / 0 (无)
1466 PC8F   Optimal Strategy for the ICPC 0 / 0 (无)
1430 PC8H   Repair Depots 0 / 0 (无)
3308 PCLNMBR   Peculiar Number 0 / 0 (无)
3036 PCOPTRIP   Counting Pairwise Coprime Triples 0 / 0 (无)
2399 PCPC12D   New Strategy 0 / 0 (无)
2400 PCPC12E   Snakes and Ladders 0 / 0 (无)
2401 PCPC12F   Snakes and Ladders Again 0 / 0 (无)

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