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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
13913 Real Mangoes for Ranjith   7 1939 41.78
3
8
9386 Re-Arrange II   9 278 44.33
21
17
7389 Rating Hazard   25 19.44
16180 Ratar   83 27.27
17
17
1526 Ranklist Sorting   1 28 13.10
17
34
6264 Rank of a Fraction   4 132 31.92
12
34
10611 Ranges   2 176 19.62
9
9
14543 Range Sum   26 1014 38.05
11
12
2002 Random Number Generator   98 40.62
407 Random Number   48 29.13
17
17
36142 Random modulo n   16 79 60.59
8
15
36937 Random Magic Trick   5 19 41.18
26
34
18149 Rama and Friends   10 999 28.64
14
12
22177 RajaRani   3 9 8.33
17
17
6906 Raining Parabolas   2 257 21.65
26
26
3724 Rainbow Ride   9 497 36.16
19
19
4458 Rainbow   2 38 19.53
34
42
2127 Rain   4 438 40.61
20
15
15574 Railway   2 19 23.03
34
34
391 Railroads   90 17.63
17
17
13807 Rage Drug   3 35 36.13
17
21
18666 Radiation   2 36 20.00
17
34
13399 Rachu   8 1051 33.69
8
10
3261 Race Against Time   38 1180 24.85
21
21
10738 Ra-One Numbers   36 1700 33.49
18
22
11050 R Numbers   17 267 55.65
28
32
27339 Queue of Soldiers   16 44.23
30351 Quest Hunter   15 23.81
5301 Query Problem   7 695 37.33
16
22
16580 Query on a tree VII   2 282 18.27
42
42
16549 Query on a tree VI   11 558 19.80
37
27
2939 Query on a tree V   79 1924 28.77
29
30
2666 Query on a tree IV   4 746 13.54
38
34
1487 Query on a tree III   1 588 18.63
17
12
913 Query on a tree II   118 4786 20.97
23
21
375 Query on a tree   167 5897 17.61
33
27
9694 Quelling Blade   10 31.58
1706 Queens, Knights and Pawns   4 854 32.96
17
9
9725 Queens on a Board   2 54 50.38
34
34
11899 Queen Game   1 21 22.70
34
17
18188 Queen and Stable Relationships   21 14.74
4311 Quasi-template   62 34.52
10437 Quadrilaterals   75 25.42
8398 Quadratic Equation   1 605 29.01
34
17
14542 Pythagorean triples (medium)   3 141 18.27
17
28
22784 Pythagorean Triple Counting   4 39 52.76
30
17
318 Pythagorean Legacy   35 19.69
1
34
23 Pyramids   -19 5734 36.68
9
15
14928 Pyramidal Constructions   -1 336 48.72
28
23
9138 Pyramid Sums 2   2 114 33.61
23
34

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