ID NAME QUALITY USERS ACC % DIFFICULTY C I
42 Adding Reversed Numbers   93 56162
6
4
4300 Rectangles   163 21439
4
8
4301 Tables   11 6371
3
3
29154 SUM OF DIGITS   10 2675
5
5
29695 GO GOA GONE   22 643
12
13
8061 Christmas Play   52 7140
5
4
13043 The Mirror of Galadriel   30 5227
2
3
4549 Adding Sevens   17 1873
17
6
5450 Tiles of Tetris, Not!   12 2956
4
5
4452 Simple Arithmetics II   53 7157
10
5
328 Bishops   79 7973
14
6
2852 Broken Keyboard   17 1136
14
13
17110 Black Widow Rings   15 2598
3
3
3921 The Great Ball   60 3808
7
11
10442 Candy Distribution   18 3679
2
4
19224 Lights, Snakes and Cages   4 79
26
30
2123 Candy I   89 24313
3
5
2148 Candy III   53 17724
9
5
1285 Continuous Fractions Again   3 352
17
13
1326 A Chase In WonderLand   1 375
17
1
2018 Clique Separation   70
16134 Save the cows!   5 53
1
6
16891 Character Patterns (Act 8)   1 443
6
1
4004 Exploding CPU   134
13769 Roommate Agreement   48 1320
11
18
26315 Crazy Smoker   22 1215
4
9
16778 Sir and the Guitar   4 131
5
6
867 Perfect Cubes   10 1924
7
5
17397 End of Fun   11 330
20
15
1166 Dead Fraction   1 306
17
34
2320 Manhattan   7 667
22
34
56 Dyzio   6 1041
13
13
25306 Easy Marks   4 375
1
1
1688 A Very Easy Problem!   40 6019
12
12
16420 Even Numbers   39 4490
6
6
3253 Electronic Document Security   2 145
23
6
1030 Triple Fat Ladies   99 15940
3
11
18714 Can You Make It Empty 2   15 1223
8
11
1787 Run Length Encoding   6 844
15
4
9788 Friends of Friends   62 6495
7
5
366 Farmer   254
1025 Fashion Shows   29 23244
2
3
6236 Matches   7 430
27
8
5970 Finding Primes   21 1206
17
15
9055 Most Frequent Value   20 383
15
21
18176 FRIENDSHIP!!!   12 589
15
21
8319 GLJIVE   -84 4210
2
5
34275 Game Store   6 166
5
7
2525 Encoding   2 733
9
17
2526 Decoding   8 1015
21
14

#ad-hoc-1

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