ID NAME QUALITY USERS ACC % DIFFICULTY C I
42 Adding Reversed Numbers   90 55107
5
4
4300 Rectangles   160 21053
4
8
4301 Tables   11 6350
3
3
29154 SUM OF DIGITS   9 2569
5
5
29695 GO GOA GONE   21 625
12
13
8061 Christmas Play   50 7088
6
4
13043 The Mirror of Galadriel   30 5137
2
3
4549 Adding Sevens   17 1870
17
6
5450 Tiles of Tetris, Not!   12 2941
4
5
4452 Simple Arithmetics II   52 7127
11
5
328 Bishops   77 7928
14
6
2852 Broken Keyboard   17 1139
14
13
17110 Black Widow Rings   15 2585
3
3
3921 The Great Ball   59 3796
7
11
10442 Candy Distribution   16 3658
2
4
19224 Lights, Snakes and Cages   4 79
26
30
2123 Candy I   87 23955
3
4
2148 Candy III   54 17500
9
5
1285 Continuous Fractions Again   3 350
17
13
1326 A Chase In WonderLand   1 375
17
1
2018 Clique Separation   68
16134 Save the cows!   4 51
1
8
16891 Character Patterns (Act 8)   1 439
6
1
4004 Exploding CPU   133
13769 Roommate Agreement   47 1306
11
18
26315 Crazy Smoker   22 1168
4
9
16778 Sir and the Guitar   4 130
5
6
867 Perfect Cubes   10 1916
7
5
17397 End of Fun   11 323
20
15
1166 Dead Fraction   1 306
17
34
2320 Manhattan   6 670
23
34
56 Dyzio   6 1041
13
13
25306 Easy Marks   4 368
1
1
1688 A Very Easy Problem!   39 6003
12
12
16420 Even Numbers   39 4381
6
6
3253 Electronic Document Security   2 145
23
6
1030 Triple Fat Ladies   98 15726
3
11
18714 Can You Make It Empty 2   15 1215
8
11
1787 Run Length Encoding   6 845
15
4
9788 Friends of Friends   61 6424
7
5
366 Farmer   254
1025 Fashion Shows   29 22769
2
3
6236 Matches   7 427
27
8
5970 Finding Primes   20 1175
16
14
9055 Most Frequent Value   19 379
15
20
18176 FRIENDSHIP!!!   12 590
15
21
8319 GLJIVE   -82 4185
2
5
34275 Game Store   6 167
5
7
2525 Encoding   2 735
9
17
2526 Decoding   8 1019
21
14

#ad-hoc-1

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