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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
15631 On the Plus Side   4 37 29.55
12
17
3387 Changing Maze   13 615 29.54
19
9
32103 Degree of a Tree   15 215 29.53
13
12
200 Monodigital Representations   1 162 29.52
26
26
132 Help R2-D2!   12 758 29.52
19
16
10113 Regular Convex Polygon   95 29.50
10646 The National Game   2 48 29.50
26
9
872 Mark-up   119 29.50
34
17
2150 Counting Subsequences   12 1023 29.49
8
13
4568 Rotating Rings   1 288 29.48
17
17
8002 Horrible Queries   396 10773 29.48
19
18
15242 Betos Quest   1 26 29.44
34
26
28457 Correlations   5 91 29.44
9
13
27225 Knight Move   12 439 29.43
15
14
13881 FUN WITH LETTERS   6 231 29.42
13
26
12563 Halt The War   8 383 29.41
19
19
7973 Sometimes, a penalty is good!   4 1196 29.41
5
5
12806 Blackjack   4 29.41
18511 Cartman and Butters Game   15 29.41
40379 Arithmetic Progression Query   9 84 29.40
15
15
3871 GCD Extreme   79 2566 29.39
19
26
11577 The Famous ICPC Team Again   1 68 29.39
17
17
3941 Kth Shortest Path   26 29.38
17730 Maximum Radius   111 29.38
1
1
8980 Cost   46 1154 29.38
19
26
9125 Suiting Weavers   84 29.38
10506 Prendonians   50 29.35
5980 Matrix Game   14 945 29.34
8
20
22804 Knapsack   4 52 29.33
21
23
34909 Keyword Finder   103 29.32
6
4
2179 ICPC Scoreboard   1 175 29.30
17
17
14833 The Fox and the Wolf   15 29.28
17
17
9070 Lightning Conductor   3 445 29.28
9
17
9748 Palindromes   1 91 29.27
34
34
8222 Substrings   6 1225 29.27
23
26
1554 Zoo   110 29.26
3899 Finding Fractions   1 166 29.25
17
34
7186 Counting Pascal   2 125 29.24
17
17
16279 Escaping from escaping   4 168 29.24
12
23
7740 Fence   19 29.23
3931 Maximum Triangle Area   2 281 29.22
5
28
4580 ABCDEF   218 7789 29.21
14
16
5978 Frequent Prime Ranges   10 692 29.21
14
14
10401 Aliens at the train   85 4368 29.20
13
10
3314 Umnozak   104 29.20
42
17
4206 Fast Maximum Matching   29 1956 29.19
22
19
9050 Tohu again   2 855 29.19
17
12
14932 Lowest Common Ancestor   230 7385 29.17
15
15
21672 Frustrated CR and His Class   3 42 29.17
17
17
18714 Can You Make It Empty 2   15 1317 29.16
8
11

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