list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
50 Invitation Cards   29 1710 43.05
16
18
135 Men at work   1 258 37.99
24
26
200 Monodigital Representations   1 161 29.58
26
26
203 Potholers   22 2257 26.50
16
12
212 Water among Cubes   51 1462 26.14
25
27
279 Interesting number   26 811 24.01
19
24
370 Ones and zeros   149 4437 29.99
19
22
402 Hike on a Graph   8 760 40.16
15
19
1418 The Cats and the Mouse   54 2957 33.71
10
12
1702 Cleaning Robot   45 1527 34.32
28
20
1774 All Discs Considered   10 513 28.52
26
22
1841 Prime Path   336 10343 57.89
19
18
1845 Mice and Maze   99 5366 36.03
10
10
2053 Key Task   37 1171 31.67
24
22
3387 Changing Maze   13 614 29.51
19
9
3861 Laser Phones   30 1355 28.59
20
18
3953 Paid Roads   8 249 26.75
19
26
4177 Herding   56 2696 35.18
14
15
4235 Wandering Queen   25 835 15.16
23
19
5151 Alice’s Cube   8 501 28.99
24
21
6187 Jane and Tarzan   6 212 24.48
17
26
6956 IOI2009 Mecho   3 159 18.12
28
23
8129 Sky Lift   2 138 25.49
24
19
9655 Elevator Trouble   94 4148 32.09
11
11
11516 VALIDATE THE MAZE   63 3034 32.06
11
8
12245 Natalia Plays a Game   11 857 43.89
12
13
12323 Minimum Knight moves !!!   128 7647 42.23
15
11
12612 Path of the righteous man   28 474 36.21
20
22
12880 Sheep   38 1755 44.44
10
10
15436 Slick   52 2027 33.19
9
9
18467 A Brief Expedition   11 272 54.44
15
15
19216 Super Mario Revisited   6 21 7.23
20
23
21326 Akbar , The great   63 2374 15.75
21
18
30500 THE HONEYCOMB MAZE   16 633 27.37
17
15
30669 Ada and Trip   34 849 30.25
14
11
32065 Save Lord Tachanka   1 0 0.00
40639 Escape the New America   2 25 29.93
17
17

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