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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
5699 The last digit re-visited   39 7443 31.68
9
9
7804 Defense of a Kingdom   39 4908 25.29
10
12
8551 Colours A, B, C, D   39 2157 21.20
10
21
12474 MAXIMUM WOOD CUTTER   39 1554 41.81
15
14
15454 How to Handle the Fans   39 1515 50.34
12
11
23132 Travelling cost   39 1601 33.00
10
8
66 Cross-country   38 4065 64.47
11
12
151 The Courier   38 1038 35.65
22
23
709 The day of the competitors   38 1549 28.85
17
27
7212 Find String Roots   38 2146 34.84
12
15
7406 Beehive Numbers   38 9185 58.88
5
9
8612 Penney Game   38 7649 67.58
4
3
12880 Sheep   38 1800 45.43
10
10
25893 Longest Perfect Increasing Subsequence   38 685 39.33
8
12
26 Build the Fence   37 2219 28.15
22
17
338 Roads   37 1382 23.87
17
22
526 Divisors   37 1686 43.55
14
13
1847 No Change   37 1672 36.22
11
14
2053 Key Task   37 1176 31.66
24
22
2727 Army Strength   37 14504 41.22
4
4
3261 Race Against Time   37 1069 24.51
21
21
4408 Build a Fence   37 12243 44.77
4
5
9340 Arbitrage   37 1798 39.21
12
17
11373 Coke madness   37 3826 34.89
5
8
14138 Amazing Factor Sequence   37 2322 37.06
11
11
15086 Land Acquisition   37 1326 28.45
24
30
10239 Between the Mountains   36 5780 39.11
7
7
10790 G-One Numbers   36 2132 48.19
16
19
32945 Ada and Subsequence   36 1019 46.40
7
8
6171 Majority   35 5312 43.14
6
7
8952 Catapult that ball   35 2836 26.30
12
12
10738 Ra-One Numbers   35 1544 33.77
18
22
4259 Pilots   34 1630 31.91
17
20
10381 Search in the dictionary!   34 1377 25.95
17
11
14834 Foxlings   34 1161 28.52
18
12
16211 Boring Factorials   34 1869 34.68
12
17
22455 SUM OF PRODUCT   34 1046 17.73
18
20
22461 Smallest Number   34 754 26.99
13
15
24998 PLAYING WITH BITS   34 776 22.07
13
13
26607 CODER FIRST PROBLEM   34 1343 57.19
6
7
30669 Ada and Trip   34 863 30.31
14
11
1811 Longest Common Substring   33 3113 21.41
20
18
5977 Weird Function   33 1135 18.85
18
16
8132 Street Trees   33 3071 46.96
6
11
13015 Counting Primes   33 1343 21.92
16
14
13043 The Mirror of Galadriel   33 5929 64.38
2
3
13630 BATMAN1   33 586 38.71
20
22
28404 Ada and Field   33 551 25.81
21
17
8 Complete the Sequence!   32 4393 37.63
16
18
666 Con-Junctions   32 984 40.62
14
19

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