ID NAME QUALITY USERS ACC % DIFFICULTY C I
32222 Ada and Panels   3 25
27
42
32579 Ada and Expenses   17 260
12
15
28304 Ada and Teams   21 264
16
15
29695 GO GOA GONE   19 574
11
13
34670 TWISTED ARRAY   -1 86
3
10
37390 Colored Development   2 10
26
26
34945 Euler Puzzle   8 96
9
17
35351 Curse the Recursion   3 29
6
12
35552 Fibonacci Power Sum   3 15
12
28
14888 Good Predictions   13 843
5
11
24979 She was in Love with BST   3 189
17
20
30454 Luke vs. Darth Vader   12 189
19
17
78 Marbles   61 6452
15
13
34649 Big team formation   1 2
17
1
34635 Team formation   2 3
17
1
37422 Recurrence Power Sum   1 2
18153 Robert Langdon & The Rule of Three   2 19
17
26
286 Selfish Cities   1 659
34
34
27043 Subset Pattern   30
1
1
37391 Development Colored   2 4
34
26
34973 Yet Another Subset Sum Problem   1 2
17
34
479 Permutation generator   119
26
26

#combinatorics

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

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