list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
3939 Search of Concatenated Strings   27 26.32
3941 Kth Shortest Path   26 29.38
3942 Cleaning Robot   30 66.15
3961 Journey with Pigs   129 43.57
3965 Minimax Triangulation   58 34.60
3970 Convert to Decimal Base System   53 40.29
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3972 Stargates   45 13.29
3981 Shortest Regular Bracket   80 35.85
4003 Subway planning   40 18.08
4004 Exploding CPU   141 46.17
4008 Con Voi   7 62.50
4010 Chặt cây   7 42.86
4021 Bipalindrome   182 30.80
4034 Pizza Delivery   53 17.10
4052 Game   75 33.70
4060 A game with probability   188 21.07
4062 Rob Mini-Safe   111 39.21
4069 Morphing is Fun   31 23.08
4070 Two Professors   101 14.52
4083 Tele Broadcast   62 49.46
4097 Locomotive   34 44.30
4142 Ellipse   17 8.46
4154 IZBORI   36 24.54
4156 PLAHTE   64 35.75
4160 A1 Road   84 50.24
4178 Distance on a square lattice   122 54.32
4185 Cube   53 36.30
4188 Amazing equality   38 13.58
4189 Landing   4 3.64
4202 Brackets Parade   232 44.26
4210 Fast Maximum Matching   10 41.94
4211 Fast Maximum Flow   16 22.22
4212 Another Longest Increasing Subsequence Problem   10 46.15
4225 Payment System   30 66.67
4275 rotate it   40 56.41
4278 Battlefield   5 57.89
4307 Stamps   27 41.56
4308 Byteantean towns   55 24.78
4309 Circular game   32 19.89
4311 Quasi-template   49 32.93
4324 The fate of the pineapple   40 28.41
4361 Connected Points   9 52.17
4378 Twofive   63 32.26
4407 Counting Arborescence   100 33.95
4410 Repair the Door   58 22.54
4411 Counting Expressions   29 42.47
4414 Highway   54 22.04
4420 Counting Graphs   54 34.50
4421 Irreducible polynomials over GF2   62 18.01
4453 Bouncing Balls II   219 27.73

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