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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1453 Optimal Connected Subset   148 45.94
26
42
1452 Birthday Cake   62 21.52
1451 01 Sequence   94 28.29
1448 3D Cover   3 91 26.87
34
26
1447 A Game of Toy Bricks   39 29.93
1444 DEL Command II   32 8.74
1442 Strange Food Chain   19 775 18.43
22
25
1441 The Clever Typist   1 34 9.67
17
34
1440 Use of Function Arctan   4 532 29.04
5
26
1437 Longest path in a tree   404 19119 38.95
14
14
1436 Is it a tree   336 20371 35.19
10
10
1435 Vertex Cover   128 4024 34.08
15
18
1434 Equation   5 415 33.18
21
26
1433 The Sum   2 279 17.02
42
34
1431 Projections Of A Polygon   2 115 10.16
9
1
1421 Goods   140 30.65
1420 Geometry and a Square   1 268 33.93
17
34
1419 A Game with Numbers   118 11956 61.61
3
10
1418 The Cats and the Mouse   54 2960 33.71
10
12
1391 Summing to a Square Prime   16 1415 54.06
12
17
1335 Maze   62 17.43
1329 Matrix   6 409 17.21
28
26
1326 A Chase In WonderLand   2 404 13.47
9
1
1325 Partial Sums   2 221 24.65
17
1296 4 values whose sum is 0   63 5055 24.87
18
14
1285 Continuous Fractions Again   5 368 41.98
17
12
1270 Paint By Numbers   19 19.62
1269 CN Tower (Hard)   22 11.50
1268 CN Tower (Easy)   3 1105 30.62
8
6
1267 Origin of Life   33 19.82
1183 Accomodate the palace   4 544 52.35
17
34
1182 Sorted bit squence   287 41.76
1167 Move To Invert   13 2444 31.76
8
16
1166 Dead Fraction   315 23.21
17
26
1163 Java vs C ++   17 5505 22.85
14
5
1162 Tic-Tac-Toe ( II )   6 2318 30.42
17
9
1161 Tic-Tac-Toe ( I )   20 3243 22.89
12
10
1112 Number Steps   84 33700 43.23
4
4
1110 Sudoku   4 432 38.39
34
1
1108 Card Trick   68 2176 50.37
21
24
1043 Can you answer these queries I   564 13356 18.49
25
24
1031 Up Subsequence   2 725 32.52
17
12
1030 Triple Fat Ladies   106 19018 51.75
4
12
1029 Matrix Summation   52 3417 20.01
15
18
1028 Hubulullu   60 8198 58.77
2
15
1027 Fool the Police   25 1637 26.97
18
23
1026 Favorite Dice   42 5233 63.48
4
21
1025 Fashion Shows   30 27533 46.37
3
3
1024 Complete Chess Boards   2 526 54.60
17
20
1022 Angels and Devils   6 665 31.13
28
26

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