ID NAME QUALITY USERS ACC % DIFFICULTY C I
32222 Ada and Panels   7 54
26
38
32579 Ada and Expenses   22 352
10
12
28304 Ada and Teams   23 722
16
15
29695 GO GOA GONE   24 819
12
12
34670 TWISTED ARRAY   186
2
14
37390 Colored Development   4 25
17
26
34945 Euler Puzzle   11 131
8
17
35552 Fibonacci Power Sum   4 23
17
30
14888 Good Predictions   14 1010
5
10
24979 She was in Love with BST   3 215
17
20
30454 Luke vs. Darth Vader   15 219
16
15
78 Marbles   67 7860
15
13
34649 Big team formation   2 4
26
1
34635 Team formation   2 92
17
1
37422 Recurrence Power Sum   3 24
42
45
18153 Robert Langdon & The Rule of Three   3 36
23
34
286 Selfish Cities   1 694
31
31
27043 Subset Pattern   33
1
1
37391 Development Colored   3 12
28
23
34973 Yet Another Subset Sum Problem   2 3
26
34
479 Permutation generator   1 125
21
17

#combinatorics

Combinatorics is a branch of mathematics concerning the study of finite or countable discrete structures.

https://en.wikipedia.org/wiki/Combinatorics