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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