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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
10450 Amoeba   98 17.32
12807 Recursive Sequence (Version X)   7 17.31
10725 String Subsequence   3 72 17.29
26
26
3646 Adventure Tourism   44 17.28
1487 Query on a tree III   532 17.28
25182 Acceptable numbers   2 62 17.28
12
23
6717 Two Paths   8 212 17.28
34
36
8549 BST again   1 86 17.28
17
34
15980 Ascending Fibonacci Numbers   23 802 17.27
17
13
1458 Help Blue Mary Please! (Act II)   1 80 17.26
16580 Query on a tree VII   1 250 17.25
34
34
22331 Intersection Query   1 13 17.21
50
34
1329 Matrix   6 409 17.21
28
26
12371 High Mountains   41 17.20
34
34
34812 Kth Power Summation   6 54 17.19
25
19
41215 Diamonds   18 17.19
7337 Shuffling   20 17.18
25001 Red Blue Line Segments   2 239 17.17
28
26
30756 Ada and Numbering   9 117 17.16
31
34
280 Lifts   42 17.13
17
1
2737 Perfect Rhyme   5 351 17.12
27
26
449 Simple Numbers with Fractions Conversion   2 34 17.11
17
17
2670 Count Minimum Spanning Trees   4 175 17.11
28
39
36674 PIZZA   3 412 17.10
1
15
4034 Pizza Delivery   53 17.10
22002 English   17 17.09
5467 Finding password   6 182 17.08
26
34
3977 Police Query   8 291 17.08
27
30
4559 A Day at the Races   122 17.08
8334 Enumeration of rationals   2 85 17.06
31099 Ada and CAPTCHA   9 172 17.05
20
16
11789 Aliens at the subway   2 67 17.03
23
23
366 Farmer   1 264 17.01
1
1
2713 Can you answer these queries IV   60 3702 17.01
21
21
1433 The Sum   2 279 17.01
42
34
10628 Count on a tree   62 2334 17.00
32
31
25024 Nth Prime   6 84 16.98
34
39
34327 Cyclic Counting Gamble   8 16.98
409 DEL Command   1 73 16.93
17
17
9489 Johny Hates Math   21 16.92
3413 Traveling Shoemaker Problem   2 73 16.87
28
17
13091 Snakes and Ladders   2 101 16.86
21
9
31975 Ada and Scarecrow   14 16.86
50
50
23963 Easy Factorials   10 112 16.81
27
26
418 Necklace   43 16.76
22303 Mau-Mau   5 75 16.67
36
17
22530 Tinku got a job   16 16.67
31976 Ada and Tulips   1 13 16.67
34
34
40501 A Simple Sieve   3 5 16.67
45
50
291 Cube Root   1 251 16.65
23
15

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