list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
5699 The last digit re-visited   39 7437 31.67
9
9
8551 Colours A, B, C, D   39 2152 21.20
10
21
8612 Penney Game   39 7622 67.55
4
3
12474 MAXIMUM WOOD CUTTER   39 1552 41.80
15
14
15454 How to Handle the Fans   39 1506 50.24
12
11
23132 Travelling cost   39 1594 32.96
10
8
66 Cross-country   38 4054 64.52
11
12
709 The day of the competitors   38 1545 28.99
17
27
2727 Army Strength   38 14470 41.24
4
4
7212 Find String Roots   38 2140 34.82
12
15
7406 Beehive Numbers   38 9164 58.87
5
9
7804 Defense of a Kingdom   38 4828 25.36
10
12
12880 Sheep   38 1755 44.44
10
10
25893 Longest Perfect Increasing Subsequence   38 682 39.25
8
12
26 Build the Fence   37 2197 28.31
22
17
151 The Courier   37 1031 35.83
22
23
338 Roads   37 1379 23.85
17
22
526 Divisors   37 1681 43.57
14
13
1847 No Change   37 1671 36.23
11
14
2053 Key Task   37 1171 31.67
24
22
3261 Race Against Time   37 1037 23.76
21
21
4408 Build a Fence   37 12216 44.79
4
5
11373 Coke madness   37 3800 34.87
5
8
14138 Amazing Factor Sequence   37 2314 37.02
11
11
15086 Land Acquisition   37 1296 28.28
24
30
8952 Catapult that ball   36 2748 26.26
12
12
10239 Between the Mountains   36 5772 39.10
7
7
10790 G-One Numbers   36 2048 48.36
16
19
32945 Ada and Subsequence   36 1006 46.50
7
8
6171 Majority   35 5307 43.13
6
7
9340 Arbitrage   35 1773 39.07
11
17
10738 Ra-One Numbers   35 1515 33.97
18
22
10381 Search in the dictionary!   34 1360 25.92
17
11
14834 Foxlings   34 1053 28.91
18
12
16211 Boring Factorials   34 1861 34.67
12
17
22455 SUM OF PRODUCT   34 1038 17.87
18
20
22461 Smallest Number   34 748 26.92
13
15
24998 PLAYING WITH BITS   34 772 22.14
13
13
26607 CODER FIRST PROBLEM   34 1338 57.18
6
7
30669 Ada and Trip   34 849 30.25
14
11
1811 Longest Common Substring   33 3056 21.24
20
18
4259 Pilots   33 1590 31.75
17
20
5977 Weird Function   33 1134 18.84
18
16
8132 Street Trees   33 3071 46.96
6
11
13043 The Mirror of Galadriel   33 5904 64.49
2
3
13630 BATMAN1   33 585 38.74
20
22
28404 Ada and Field   33 547 25.77
21
17
666 Con-Junctions   32 980 40.57
14
19
13015 Counting Primes   32 1306 21.63
16
14
18164 Atoms in the Lab   32 3796 25.74
8
5

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