list of classical problems

ID NAME CODE USERS ACC %
19687    Symmetric matrix 2 MATPROD2 0 0.00
19722    Modular Tetration MTETRA 39 69.54
19786    Mr Toothless and His GCD Operation GGD 384 30.64
19795    Psycho34 (easy) PSYCHOT 55 22.27
19899    Middle Earth MIDEARTH 46 12.14
19913    Counting Pythagorean Triples PYTRIP3 17 14.14
19954    Travelling Knight 2 KN2 16 13.77
19957    GETTING AN AP APPROB 488 36.75
19971    100pct failure in 72 hours HAL9000 8 45.90
19975    Amazing Prime Sequence (hard) APS2 88 43.39
19976    HYPERCUBES CUBE 113 45.28
19985    GCD Extreme (hard) GCDEX2 297 35.52
19991    In case of failure FAILURE 124 40.55
19996    Moon Safari (medium) MOON1 76 39.64
19997    Moon Safari (Hard) MOON2 49 55.56
20038    Easiest Loop 1 SNGLOOP1 371 48.38
20041    Hippo and Bloody Jungle HIPPO 39 19.08
20050    Love Story 2 PIHU2 86 38.17
20063    Large subsequence Problem LARSUBP 445 42.03
20100    Honda and Kagawa HONDA 379 45.68
20167    Array with Hudai Calculation ARRHUDAI 48 23.86
20170    Coloring Segments COLORSEG 88 20.60
20172    Divisiblity by 3 DIVISION 583 30.52
20173    Counting Divisors (square) DIVCNT2 441 21.81
20174    Counting Divisors (cube) DIVCNT3 366 34.96
20196    The Magical Bag DIVEQL 198 38.33
20327    Triangles BOI02TRI 29 29.27
20562    Tracy and Charlie TANDC 42 56.47
20563    Minion Circle MCIRCLE 19 32.97
20635    Dortmund Dilemma DORTMUND 19 44.44
20637    Ajob Subsequence AJOB 77 38.94
20644    Zero Query ZQUERY 682 19.69
20654    Interesting Subset INTSUB 95 23.50
20673    Count The Indexes CNTINDX 243 29.21
20689    WA,RTE and Placements WRP 22 39.20
20752    LAZY FRIENDS GEMS 33 52.81
20775    Roger and tree RTREE 330 27.93
20845    Interesting Numbers INUM 219 24.10
20846    Interesting Selection ISELECT 123 43.21
20848    Interesting Game IGAME 58 45.09
20849    Interesting queries IQUERY 44 36.32
20863    Largest Submatrix MINSUB 80 26.92
20872    Counting Pairwise Coprime Triples PCOPTRIP 47 53.73
20926    Special Numbers (Reverse and Add) REVADD 21 12.83
20931    Square-Free Product (Hard) PUCMMT02 58 35.98
20951    Pebbles SNIM 31 56.72
20970    Alia and Handsome Devil HDEVIL 389 30.29
20971    Alia and Substrings HAGU 20 21.99
20972    Alia and Cryptography CONOR 101 43.86
20977    Car Game UCBINTB 39 38.22
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