list of classical problems

ID NAME CODE USERS ACC %
10092    Party Night PRTYNGHT 30 30.00
6562    Esferas PRUBALL 628 61.00
15851    Permutations PSERVICE 18 32.93
34021    Prefix Square Free Words PSFWORDS 10 12.04
8277    Number of Prime Strings PSTR 112 19.95
704    Remove The String PSTRING 663 15.28
8507    Party Switching PSWITCH 246 28.74
17002    Psycho Function PSYCHO2 75 33.80
17143    Make Psycho PSYCHO3 227 25.00
16030    Psycho PSYCHON 861 20.72
19795    Psycho34 (easy) PSYCHOT 61 22.81
1477    Play with a Tree PT07A 95 15.49
1478    The Easiest Problem PT07B 75 9.20
1479    The GbAaY Kingdom PT07C 136 19.18
1480    Let us count 1 2 3 PT07D 94 16.28
1482    A short vacation in Disneyland PT07F 236 14.80
1483    Colorful Lights Party PT07G 13 10.20
1484    Search in XML PT07H 20 3.07
1487    Query on a tree III PT07J 588 18.63
1435    Vertex Cover PT07X 4159 34.36
1436    Is it a tree PT07Y 21154 35.31
1437    Longest path in a tree PT07Z 20181 39.56
22784    Pythagorean Triple Counting PTC 39 52.76
11736    Prime Time PTIME 2167 48.59
15165    primes triangle (II) PTR2 18 26.38
16179    Platinum Relic! PTRELIC 68 22.62
15164    primes triangle (I) PTRI 78 7.05
9255    Publication PUBLICAT 42 60.75
15215    David and his Obsession PUCMM009 429 41.23
10186    Divisor Digits PUCMM025 1290 30.93
11560    A Summatory PUCMM210 1646 26.01
11564    E 23 Stairs pattern PUCMM215 140 39.70
11909    C You and Me PUCMM223 95 45.36
13114    SQL Queries PUCMM331 16 52.63
13116    Dividing Xorland PUCMM333 31 48.57
13117    White Hats PUCMM334 618 37.56
13118    The Rook and The Rookette PUCMM335 37 27.23
20931    Square-Free Product (Hard) PUCMMT02 65 36.36
2662    Put a Point in a Hyperspace PUTIN 21 11.79
17128    Putnik PUTNIK 101 48.67
2132    Puzzle PUZZLE2 89 32.68
9511    24-Puzzle PUZZLE24 24 17.76
9967    Playing with Words PWORDS 36 31.95
26368    Power and Mod PWRANDMOD 272 19.65
6893    Power Sums PWSUM 107 57.01
6288    Treeramids PYRA 1096 51.97
9137    Pyramid Sums PYRSUM 96 35.60
9138    Pyramid Sums 2 PYRSUM2 114 33.61
14542    Pythagorean triples (medium) PYTRIP2 141 18.27
19913    Counting Pythagorean Triples PYTRIP3 21 14.29
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