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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
16267 Real Numbers   2 171 17.91
26
26
34867 Coding Test   9 156 23.95
14
13
11604 The return of the Cake   2 909 27.69
1
6
5294 Recurrence   2 255 14.32
28
17
37422 Recurrence Power Sum   3 25 19.51
42
45
1960 Rectangles   4 164 16.40
34
28
36387 Honest Rectangle   1 20 32.46
17
34
8285 Rectangles in a Matrix   2 7 23.21
17
34
188 Rectangles   2 182 12.71
17
23
2276 Partitions   1 19 10.76
34
34
36226 Reduce the array   15 684 29.21
4
6
11712 Red Cross Hospital   1 18 24.10
34
1
27483 Counting Words   4 45 49.15
17
21
28479 Single substitutions   4 64 32.20
17
17
10113 Regular Convex Polygon   95 29.50
70 Relations   2 250 28.61
9
17
1707 Reliable Nets   4 339 31.46
28
23
3865 Reljef   3 94 39.22
26
17
2047 Stone Removing Game   -1 131 37.87
9862 Help the Airline Company   11 23.91
130 Rent your airplane and make money   88 3349 28.61
18
17
4410 Repair the Door   58 22.49
687 Repeats   1 934 25.21
34
39
2415 Kirchhof Law   1 90 19.13
34
17
10449 Resource Management   15 25.96
11117 Restacking haybales 2012   227 57.68
10071 Working at the Restaurant   32 37.78
14820 Return of the Digger   2 11 19.48
17
17
23507 Retrovirus   7 90 36.57
15
13
20926 Special Numbers (Reverse and Add)   1 21 12.83
26
26
9693 Revenge of Fibonacci   2 93 30.94
34
34
10112 Peer Review   116 32.71
8578 Reverse the Sequence   1 86 41.51
34
50
36238 Color Play   12 205 24.03
10
20
118 Rhombs   105 47.21
1
34
3983 Right Triangle Counting   3 189 18.05
30
21
12612 Path of the righteous man   28 483 36.19
20
22
12943 Counting   5 79 47.71
8
30
21853 Rivals   23 506 33.70
17
24
37402 The Attack Titan   4 128 26.22
6
6
18201 RK Sorting   20 1332 38.17
21
12
18050 Robert Langdon & Class Attendance   1 39 25.31
17
17
18056 Robert Langdon & Cipher   2 563 50.46
1
13
17504 Run length encoding   12 1022 39.00
8
4
4908 Run-Length Mathematics   6 718 41.07
13
1
18153 Robert Langdon & The Rule of Three   3 35 34.59
23
34
18094 Robert Langdon & Florence   1 175 64.69
28
23
15376 Running Median   15 1138 26.15
11
9
16254 Running Median Again   41 1706 22.40
20
16
15076 A Romantic Movie Outing   24 21.25

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