ID NAME QUALITY USERS ACC % DIFFICULTY C I
32222 Ada and Panels   8 60
27
37
32579 Ada and Expenses   22 359
10
12
28304 Ada and Teams   24 777
15
15
29695 GO GOA GONE   24 859
12
12
34670 TWISTED ARRAY   198
2
14
37390 Colored Development   5 26
21
30
34945 Euler Puzzle   11 135
8
17
35552 Fibonacci Power Sum   5 26
17
30
14888 Good Predictions   17 1051
6
10
24979 She was in Love with BST   3 218
17
20
30454 Luke vs. Darth Vader   15 221
16
15
78 Marbles   68 7999
15
13
34649 Big team formation   2 5
26
1
34635 Team formation   2 95
17
1
37422 Recurrence Power Sum   3 25
42
45
18153 Robert Langdon & The Rule of Three   3 36
23
34
286 Selfish Cities   1 703
31
31
27043 Subset Pattern   33
1
1
37391 Development Colored   4 14
30
30
34973 Yet Another Subset Sum Problem   2 4
26
34
479 Permutation generator   1 126
21
17

#combinatorics

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

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