ID NAME QUALITY USERS ACC % DIFFICULTY C I
42 Adding Reversed Numbers   79 50477
6
4
4300 Rectangles   144 19336
4
8
4301 Tables   10 6111
3
3
29154 SUM OF DIGITS   8 2059
5
5
29695 GO GOA GONE   15 524
12
14
8061 Christmas Play   48 6764
5
4
13043 The Mirror of Galadriel   28 4850
2
3
4549 Adding Sevens   17 1840
17
6
5450 Tiles of Tetris, Not!   12 2858
4
5
4452 Simple Arithmetics II   49 6870
10
5
328 Bishops   75 7632
14
6
2852 Broken Keyboard   16 1106
14
14
17110 Black Widow Rings   13 2503
2
2
3921 The Great Ball   57 3674
7
11
10442 Candy Distribution   15 3551
2
4
19224 Lights, Snakes and Cages   4 74
26
30
2123 Candy I   72 21912
3
4
2148 Candy III   57 16464
9
5
1285 Continuous Fractions Again   3 343
17
13
1326 A Chase In WonderLand   1 359
17
1
2018 Clique Separation   68
16134 Save the cows!   4 49
1
8
16891 Character Patterns (Act 8)   1 401
6
1
4004 Exploding CPU   132
13769 Roommate Agreement   43 1228
12
18
26315 Crazy Smoker   22 1114
4
9
16778 Sir and the Guitar   4 125
5
6
867 Perfect Cubes   10 1883
7
5
17397 End of Fun   10 311
20
15
1166 Dead Fraction   1 301
17
34
2320 Manhattan   5 572
21
34
56 Dyzio   5 1005
15
15
25306 Easy Marks   2 341
1
1
1688 A Very Easy Problem!   37 5927
12
11
16420 Even Numbers   39 3990
6
6
3253 Electronic Document Security   2 141
23
6
1030 Triple Fat Ladies   87 14681
4
12
18714 Can You Make It Empty 2   15 1168
8
10
1787 Run Length Encoding   5 833
14
4
9788 Friends of Friends   56 6006
7
5
366 Farmer   250
1025 Fashion Shows   23 20752
3
3
6236 Matches   5 419
28
6
5970 Finding Primes   20 1050
16
14
9055 Most Frequent Value   16 322
15
22
18176 FRIENDSHIP!!!   12 558
15
21
8319 GLJIVE   -78 4122
2
5
34275 Game Store   4 124
6
6
2525 Encoding   2 728
9
17
2526 Decoding   7 1012
21
14

#ad-hoc-1

Problem requires no specific knowledge and the solution is not intended to be adapted to other purposes