ID NAME QUALITY USERS ACC % DIFFICULTY C I
42 Adding Reversed Numbers   103 79694
6
4
4300 Rectangles   176 26828
5
8
4301 Tables   14 6606
2
3
29154 SUM OF DIGITS   11 3687
4
4
29695 GO GOA GONE   24 867
12
12
8061 Christmas Play   57 7750
6
4
13043 The Mirror of Galadriel   33 5947
2
3
4549 Adding Sevens   19 1924
17
6
5450 Tiles of Tetris, Not!   15 3180
4
5
4452 Simple Arithmetics II   55 7460
11
5
328 Bishops   83 8951
14
7
2852 Broken Keyboard   19 1203
14
14
17110 Black Widow Rings   15 2718
3
3
3921 The Great Ball   60 3934
7
11
10442 Candy Distribution   22 3914
2
4
19224 Lights, Snakes and Cages   5 85
24
34
2123 Candy I   97 28715
4
5
2148 Candy III   54 20438
9
5
1285 Continuous Fractions Again   5 371
15
10
1326 A Chase In WonderLand   2 405
6
1
2018 Clique Separation   72
16134 Save the cows!   5 59
1
6
16891 Character Patterns (Act 8)   1 515
6
1
4004 Exploding CPU   141
13769 Roommate Agreement   52 1473
11
16
26315 Crazy Smoker   24 1345
4
9
16778 Sir and the Guitar   6 146
4
5
867 Perfect Cubes   11 2201
7
5
17397 End of Fun   14 354
17
16
1166 Dead Fraction   317
12
17
2320 Manhattan   9 696
20
34
56 Dyzio   8 1214
11
14
25306 Easy Marks   4 452
1
1
1688 A Very Easy Problem!   40 6163
12
11
16420 Even Numbers   40 5253
6
5
3253 Electronic Document Security   3 150
23
6
1030 Triple Fat Ladies   106 19125
4
12
18714 Can You Make It Empty 2   15 1320
8
11
1787 Run Length Encoding   7 857
15
4
9788 Friends of Friends   67 7128
7
5
366 Farmer   1 265
1
1
1025 Fashion Shows   30 27723
3
3
6236 Matches   8 451
26
7
5970 Finding Primes   22 1335
16
15
9055 Most Frequent Value   30 762
15
21
18176 FRIENDSHIP!!!   16 631
15
21
8319 GLJIVE   -85 4394
2
5
34275 Game Store   11 206
5
6
2525 Encoding   3 746
12
12
2526 Decoding   9 1035
23
15

#ad-hoc-1

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