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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
15075 A Romantic Dinner Outing   22 21.39
1
1
15270 A plus B   1 12 6.86
34
34
18468 A Pleasant Stroll   10 134 35.01
23
19
677 A place for the brewery   210 27.71
17
1
5142 A Pair of Graphs   1 68 54.35
17
17
34575 A New Task for Ibrahim   7 36 51.61
4
28
32 A Needle in the Haystack   193 11064 38.24
15
14
8992 A los saltos   36 30.82
7969 A Knights’ Tale   3 76 23.33
17
17
4176 A Knightly Pursuit   2 64 28.03
26
17
15092 A Kleene Implementation   5 44.44
6950 A HUGE TOWER   1 126 47.40
1
34
4060 A game with probability   197 21.61
1419 A Game with Numbers   118 12013 61.54
3
10
1447 A Game of Toy Bricks   38 26.09
1
1
1471 A Game of Pearls   1 40 30.17
17
17
10460 A function over factors   1 97 32.63
1
17
18466 A Frightening Evening   1 116 28.69
1
1
11574 A Famous Stone Collector   3 122 35.42
9
23
11576 A Famous King’s Trip   21 9.79
11573 A Famous ICPC Team   10 2034 37.64
2
8
11582 A Famous Grid   2 186 16.62
17
17
11580 A Famous Game   383 34.13
28
28
11575 A Famous Equation   2 73 27.13
34
34
11578 A Famous City   10 779 30.90
16
21
4461 A Famous Airport Manager   23 16.36
4559 A Day at the Races   122 17.08
34863 A Cumulative Sum Problem   5 29 21.53
34
42
22675 A conjecture of Paul Erdős (hard)   2 4 5.56
34
34
4164 A conjecture of Paul Erdős   23 2282 44.03
16
14
376 A concrete simulation   15 1721 34.34
11
12
35088 A Complex Cone   2 50 20.98
9
34
19551 A Colorful world   3 87 31.64
6
1
5271 A Coin Game   4 545 31.73
21
30
11904 A Classic Myth - Flatland Superhero   10 46.43
1326 A Chase In WonderLand   2 405 13.49
6
1
9636 A Canvas Building   66 19.12
17
17
3377 A Bug’s Life   342 15437 27.47
12
13
18467 A Brief Expedition   11 273 54.12
15
15
7555 A - Crazy Rows   2 180 25.47
17
21
6690 A - Comparison Expressions   55 32.99
1296 4 values whose sum is 0   64 5070 24.89
18
14
1448 3D Cover   3 94 26.60
28
17
11180 369 Numbers   17 778 12.41
26
24
21407 2x2 Subgrid Sum Problem (medium)   17 21.05
21409 2x2 Subgrid Sum Problem (generalized)   1 6 42.11
9721 2s Complement   1 173 31.83
34
34
27301 2D arrays with XOR property   4 14 43.48
23
39
9511 24-Puzzle   23 23.14
24999 1807   10 522 38.53
15
18

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