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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
17944 Mickey Mouse Magic Trick v4   1 41 56.41
1
34
21414 Count The Indexes 2   5 41 18.11
37
24
22552 Flow on Tree   41 40.30
25384 Shuffles   2 41 53.47
1
17
25476 Induced favoritism   1 41 29.23
17
34
25482 Kimetto Kipsang and Kipchoge   1 41 20.71
34
34
26746 Gears   4 41 29.03
21
17
34648 Seven   5 41 49.61
11
21
34975 Prime Friendly Numbers   10 41 19.29
28
26
36529 Challenge Accepted!   1 41 27.07
17
17
36537 Koala Fan   8 41 23.48
13
10
392 Spin   42 25.99
1
17
1505 Whac-a-Mole   2 42 15.87
50
17
2202 Tan and His Interesting Game   42 23.76
7629 Building Ports   42 13.07
8586 Factorial factorisation   2 42 19.81
17
17
8661 Bogosort   42 14.33
12421 Chocolate Distribution   1 42 22.94
17
17
12887 Ant Colony Optimization   42 63.00
12893 Short Select   1 42 41.55
14751 Self Descriptive Number   42 57.29
15541 Simplified Hangul   4 42 54.00
17
13
18667 Product of factorials (hard)   3 42 26.61
28
34
20562 Tracy and Charlie   1 42 56.98
17
34
21672 Frustrated CR and His Class   3 42 29.17
17
17
22740 Another Valentine Maze Game (1D)   4 42 47.33
5
21
26790 Stockade   2 42 42.74
17
17
28413 Ada and Fence   6 42 26.73
15
17
30349 Strange Waca   9 42 19.88
17
22
33906 Ada and Sets   2 42 55.73
17
17
280 Lifts   43 17.33
17
1
418 Necklace   43 17.02
518 Zig-Zag Permutation   1 43 31.38
26
26
2138 Pibonacci   3 43 14.58
26
39
5469 Houses   1 43 27.66
34
26
6832 To Score or not to score   43 28.16
8317 Red Balls   43 44.25
8461 Adventure in Moving   43 27.98
10376 String Factorization!   1 43 10.98
26
42
12609 Different Vectors   3 43 42.17
26
34
12960 Collision on Christmas Eve   1 43 26.54
14821 Traffic Lights   1 43 55.10
17
17
15244 Davids Quest   2 43 55.20
26
17
16062 Count Primes   -2 43 24.08
18248 Maggu’s Solar Panels   2 43 32.74
34
34
18287 Maggu and Magguness Level   43 32.11
21963 Flowery Trails   3 43 42.22
17
13
22528 Paths in a Tree   3 43 28.37
21
21
25959 Next Lexicographically Greater Substring   4 43 21.43
23
23
34636 Richie Rich and Keen Bean   43 41.74
17
23

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