list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
16178 Change   29 26.45
15634 Lennys Lucky Lotto Lists   10 204 34.02
7
14
26843 Who is the Best?   2 40.00
34229 "Operation - Modulo"   14 190 31.77
3
17
4227 "Shortest" pair of paths   3 183 39.08
23
17
4302 (K,N)-Knight   2 303 24.63
17
21
2140 (un)Fair Play   71 38.30
3973 0 0 Pairs   3 760 27.29
13
13
1451 01 Sequence   95 29.57
10676 0110SS   24 1639 42.42
13
9
19971 100pct failure in 72 hours   1 7 64.44
17
50
381 106 miles to Chicago   45 2872 37.51
15
14
9952 111…1 Squared   8 1643 47.55
5
10
5725 123 Sequence   2 116 25.68
1
1
24999 1807   10 480 38.84
15
18
9511 24-Puzzle   16 20.21
27301 2D arrays with XOR property   4 11 53.33
23
39
9721 2s Complement   1 163 31.39
34
34
21409 2x2 Subgrid Sum Problem (generalized)   1 4 40.00
21407 2x2 Subgrid Sum Problem (medium)   10 18.42
11180 369 Numbers   14 503 15.35
22
25
1448 3D Cover   2 89 26.85
34
26
1296 4 values whose sum is 0   60 4577 26.27
18
14
6690 A - Comparison Expressions   52 33.09
7555 A - Crazy Rows   2 173 45.43
17
21
18467 A Brief Expedition   11 256 56.37
15
15
3377 A Bug’s Life   294 10679 28.17
13
13
9636 A Canvas Building   66 20.40
17
17
1326 A Chase In WonderLand   1 363 13.30
17
1
11904 A Classic Myth - Flatland Superhero   5 46.15
19551 A Colorful world   2 86 34.41
1
1
35088 A Complex Cone   3 47 20.40
17
34
376 A concrete simulation   13 1594 34.62
10
11
4164 A conjecture of Paul Erdős   11 1020 48.28
12
10
22675 A conjecture of Paul Erdős (hard)   2 3 4.62
34
34
34863 A Cumulative Sum Problem   4 20 22.08
34
39
4559 A Day at the Races   105 23.14
4461 A Famous Airport Manager   21 17.91
11578 A Famous City   8 610 32.62
21
23
11575 A Famous Equation   2 64 29.21
34
34
11580 A Famous Game   174 27.25
26
34
11582 A Famous Grid   2 175 17.71
17
17
11573 A Famous ICPC Team   8 1966 38.02
2
9
11576 A Famous King’s Trip   17 8.97
11574 A Famous Stone Collector   3 113 40.28
9
23
18466 A Frightening Evening   98 28.05
1
1
10460 A function over factors   1 89 34.78
1
17
1471 A Game of Pearls   1 39 30.40
17
17
1447 A Game of Toy Bricks   36 35.09
1419 A Game with Numbers   106 9485 61.99
2
10

Most popular tags