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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
726 Promotion   24 2095 28.11
12
8
8371 TRIANGULAR PRISM   11 2084 68.50
2
8
11374 Database   11 2081 34.33
6
6
11840 Sum of Squares with Segment Tree   55 2074 50.97
23
19
4206 Fast Maximum Matching   32 2063 29.38
22
19
1812 Longest Common Substring II   16 2052 18.31
30
28
9126 Time to live   48 2052 37.76
12
15
2881 Find the Clones   17 2051 44.52
9
7
33 Trip   17 2049 26.36
25
16
11573 A Famous ICPC Team   10 2044 37.73
2
8
9820 Through the troops   29 2033 44.56
12
11
23776 K-Query Online   86 2026 40.30
20
23
8725 Closest Point Pair   30 2023 20.49
18
21
10514 K12 - Building Construction   58 2023 26.23
12
16
7668 Pebble Solver   15 2006 50.44
8
11
14441 Three Circle Problem (EASY)   12 2006 55.60
6
13
10639 The Blind Passenger   9 1995 44.71
4
5
15429 Counting Ids   15 1994 49.39
5
5
3408 DNA Sequences   47 1989 26.12
16
20
12880 Sheep   40 1980 46.35
9
10
22403 Divisors of factorial   71 1971 29.84
14
14
8545 Subset sum   45 1939 40.09
12
16
13913 Real Mangoes for Ranjith   7 1936 41.75
3
8
4549 Adding Sevens   19 1929 33.22
17
6
16139 Naya Shatranj (New Chess)   10 1927 68.33
4
17
9340 Arbitrage   37 1920 39.59
12
17
2006 Load Balancing   19 1907 47.56
11
19
16211 Boring Factorials   34 1904 34.76
12
17
3978 Distance Query   71 1901 32.90
24
21
2939 Query on a tree V   79 1891 28.58
29
30
16909 Critical Edges   50 1886 28.67
13
15
18167 SubXor   76 1868 30.67
25
29
10818 Medium Factorization   23 1861 14.45
19
14
9805 Be Awesome As Barney Stinson   44 1852 68.26
12
13
8374 PARKET   4 1851 56.18
3
4
13384 Nice Binary Trees   26 1838 39.87
9
13
2901 One Geometry Problem   9 1826 36.15
4
13
51 Fake tournament   43 1810 26.95
18
19
503 Prime Intervals   66 1806 16.05
21
19
10228 Magic Grid   44 1798 26.42
14
19
25942 Ball sum   42 1796 35.25
11
11
4226 Japan   30 1795 23.39
16
19
12914 Totient Extreme   45 1795 40.20
8
12
8728 Hierarchy   17 1794 29.93
10
17
9952 111…1 Squared   8 1790 46.41
5
10
16254 Running Median Again   41 1785 22.47
20
16
11932 Amz Rock   13 1782 61.75
4
7
15567 Playing With Balls   23 1774 65.31
2
11
50 Invitation Cards   29 1770 43.00
16
18
23976 Mohib and series   40 1769 47.06
5
7

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