list of classical problems

ID NAME CODE USERS ACC %
5450    Tiles of Tetris, Not! ANARC09B 3170 35.96
5451    Not So Flat After All ANARC09C 1122 42.62
5452    Hop Do not Walk ANARC09D 144 35.29
5453    Air Strike ANARC09F 175 23.63
5462    Art Plagiarism AP 9 22.22
5463    Bird or not bird BIRD 115 38.84
5464    Counting triangles CT 204 28.86
5465    Deliver pizza DP 404 22.80
5466    Electronic queue EQ 156 36.89
5467    Finding password FP 182 17.08
5468    Going to school GS 321 35.87
5469    Houses HOUSES2 42 26.72
5511    Heavy Sequences HSEQ 82 18.23
5522    Buy Your House PHU09H 12 35.90
5523    Highway Patrol PHU09K 16 50.00
5530    Math with Bases (Easy) BSMATH1 65 23.92
5531    Kutevi Hard KUTH 87 42.67
5541    Sequoiadendron SEQUOIA 62 45.22
5542    Counting pairs CPAIR 131 26.46
5566    Math with Bases BSMATH2 15 11.28
5609    Knight Moves KMOVES 98 40.23
5637    LL and ErBao ISUN1 5 50.88
5638    Mobile Service Hard SERVICEH 82 22.67
5640    Fractions on Tree NG0FRCTN 925 61.26
5649    Divide Polygon DTPOLY 33 21.22
5652    Snow White and the N dwarfs PATULJCI 920 22.23
5672    Captain Selection CAPTAIN 4 38.89
5673    Fractions on Tree ( reloaded !) NG1FRCTN 244 38.22
5699    The last digit re-visited LASTDIG2 7448 31.69
5703    Primes of Lambda LPRIME 22 26.97
5725    123 Sequence KSEQ 120 23.56
5732    Paradox PARADOX 1221 27.90
5830    Alternating Permutations ALTPERM 57 38.46
5831    Permutation Jumping PERMJUMP 135 58.71
5832    AND Rounds ANDROUND 1693 24.82
5833    XOR Rounds XORROUND 355 30.67
5885    Troops of Sand Monsters TROOPS 107 17.22
5902    Tri CEOI09TR 77 20.54
5917    Factorial length LENGFACT 3464 34.51
5969    Finding Maximum FINDMAX 103 30.45
5970    Finding Primes FINDPRM 1332 27.88
5971    LCM Sum LCMSUM 3665 25.90
5972    Maximum Sum Sequences MAXSUMSQ 1145 20.62
5973    Selecting Teams SELTEAM 225 22.87
5975    Travelling Knight TRKNIGHT 50 33.70
5976    Traversing Grid TRGRID 3708 58.48
5977    Weird Function WEIRDFN 1138 18.83
5978    Frequent Prime Ranges FRQPRIME 698 29.30
5979    Yet Another Permutations Problem YAPP 1352 49.45
5980    Matrix Game MATGAME 948 29.31
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