list of classical problems

ID NAME CODE USERS ACC %
280    Lifts LIFTS 45 17.61
283    Naptime NAPTIME 675 26.44
286    Selfish Cities SCITIES 711 39.03
288    Prime or Not PON 5470 19.31
290    Polynomial Equations POLYEQ 66 21.91
297    Aggressive cows AGGRCOW 47479 35.98
303    The Unstable Cube UCUBE 51 28.10
309    The Room Pattern RATTERN 48 14.99
325    The Tall Windmills WINDMILL 82 22.57
328    Bishops BISHOPS 8988 32.04
329    Calls CALLS 129 29.63
332    Hard Question HARDQ 106 33.05
339    Recursive Sequence SEQ 3835 50.32
351    Ha-noi! HAN01 386 42.45
359    Alpha Centauri Tennis ACT 1755 50.27
363    Crane Operator COPER 5 2.71
364    Pocket Money LISA 2248 38.59
368    Cobbled streets CSTREET 5441 50.87
372    The Benefactor BENEFACT 3099 35.38
376    A concrete simulation ACS 1734 34.37
381    106 miles to Chicago CHICAGO 3221 36.51
383    European railroad tracks EUROPEAN 227 30.31
388    Menu MENU 352 19.00
389    Use of Hospital Facilities HOSPITAL 53 15.47
390    Billiard BILLIARD 903 54.53
391    Railroads RAILROAD 90 17.63
392    Spin SPIN 44 26.63
393    Hexagon HEXAGON 77 48.65
394    Alphacode ACODE 22974 27.42
395    Anti-prime Sequences APRIME 349 47.83
396    Hit or Miss HITOMISS 133 43.10
397    I Conduit CONDUIT 196 15.57
398    Roll Playing Games RPGAMES 121 14.67
399    Team Rankings TRANK 391 53.58
400    To and Fro TOANDFRO 23447 55.60
401    Translations TRANSL 137 38.07
402    Hike on a Graph HIKE 780 40.27
404    Scanner SCANNER 59 12.57
405    Tin Cutter TCUTTER 141 29.59
407    Random Number RNUMBER 48 29.13
408    Jill Rides Again JRIDE 970 34.26
409    DEL Command DELCOMM 79 17.60
410    Variable Radix Huffman Encoding VHUFFM 180 19.26
413    Word Puzzles WPUZZLES 377 18.26
414    Equatorial Bonfire BONFIRE 79 28.90
449    Simple Numbers with Fractions Conversion TCNUMFL 37 15.96
515    Collatz CLTZ 450 43.13
518    Zig-Zag Permutation ZZPERM 51 31.25
526    Divisors DIV 1715 43.75
530    Divisors 2 DIV2 936 52.47
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