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list of challenge problems

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ID NAME CODE USERS ACC %
2659    Carl CARL 70 39.19
2729    Discover DISCOVER 2 8.03
2732    Attack A Single Test File! SINGLEL 3 34.38
3099    Super Quine SELF 87 19.12
3880    Nop NOP 607 49.87
4163    Relative Board RELBOARD 6 36.36
4246    Place the Numbers II PLCNUM2 546 66.52
5842    Polybius square POLYBIUS 1030 59.25
6125    Dos Date DDATE 793 55.86
6173    Burned Pancakes Tower DBP 25 61.47
6295    Area Difference SQDIFF 391 44.66
6338    Monster MONS 46 51.28
6646    Fully Parenthesized Expression BRACKETS 26 43.75
7063    Cycles, More Cycles CYCLE 21 82.50
7105    Reverse the Input REVINPUT 548 34.58
7225    Word To Number WORDNUM 158 61.29
7480    Nth Prime NPRIME 620 45.61
7958    Prisoner of Benda (Challenge) BENDA 18 44.57
8102    Christmas Tree XMAS 828 66.28
8315    Number to Word NUMWORD 230 42.52
8473    PATHS WAYS 308 44.91
8638    Sum of Fibonacci numbers FIBSUM 136 72.76
8672    Distributing the balls BALLS 28 32.63
8675    Equation Check EQCHECK 266 57.37
8676    Digits of Phi (Golden Ratio) PHIVAL 294 53.58
8733    Summing up Last digits PLDGTS 31 61.86
8950    Grid points GRIDPNT 46 57.84
9380    Connecting three towns THREETWN 125 81.06
10295    HQNP Incomputable Hard HQNP2 61 76.53
11397    Find all independent nodes INDISET 26 89.36
11410    Find New SPOJ Problems FINDPROB 8 42.07
11445    EASY MATH (Challenge) EASYMATC 172 45.70
11451    Aritho-geometric Series (AGS) (Challenge) AGSCHALL 57 46.54
11462    Fun with Fibonacci Series (Challenge) FIBFUNCH 293 34.40
11689    Real Roots REALROOT 42 92.67
11719    The dojo s corridor M5TILE 74 64.29
11746    Sum the Series SUMUP 1938 58.78
11790    Size Contest!!!Reloaded!! JH1 349 38.73
11793    Cartesian Shortest Path CSPATH 54 43.78
11815    Tiling a WxH Grid With Dominoes MNTILE 42 54.15
11849    A Very Easy Problem! (Challenge Mode) EPROBLEM 83 49.95
11975    PIEK PIEK2 183 92.17
12393    Enigma Machine ENIGMAS 23 56.92
12655    Strongly Connected Chemicals SCCHEM 9 95.00
12845    Minimum knight moves Challenge NAKANJC 345 72.11
12874    Pell Fourth PELLFOUR 13 58.02
12919    Man of Steel MOS 25 67.46
12996    Wow Square WOW_SQR 127 54.38
13366    TWO KINGS CONQUER 19 58.15
13418    Fibonacci factorization BMS1988 10 29.70
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