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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
3749 Subset Sums   74 4060 26.35
17
20
338 Roads   37 1388 23.92
17
22
709 The day of the competitors   38 1549 28.85
17
27
10381 Search in the dictionary!   34 1396 26.03
17
11
15 The Shortest Path   156 7545 24.09
17
12
345 Mixtures   256 8875 36.39
17
21
4549 Adding Sevens   19 1923 33.13
17
6
8217 XOR Maximization   47 1667 22.87
17
28
5832 AND Rounds   51 1693 24.82
17
20
13780 Audition   18 642 23.95
17
17
15259 Large Knapsack   46 2248 25.94
17
17
30500 THE HONEYCOMB MAZE   16 637 27.33
17
15
9652 Robots on a grid   21 853 19.48
17
13
23938 Save the Scofield !!   17 272 31.93
17
19
297 Aggressive cows   1063 43135 36.00
16
23
8985 Line up   19 395 51.01
16
17
5732 Paradox   42 1221 27.90
16
19
11578 A Famous City   10 777 30.88
16
21
12262 Mirror Strings !!!   9 915 33.32
16
17
36199 Subset with all Digits   18 226 33.39
16
19
7386 Activities   62 1424 25.48
16
19
15562 Find Lexicographically Smallest Permutation   13 354 40.27
16
13
3408 DNA Sequences   47 1983 26.17
16
20
17725 Bad XOR   49 1034 23.70
16
22
10790 G-One Numbers   37 2191 47.86
16
19
4103 Extend to Palindrome   40 2398 29.82
16
17
10366 Play with Dates   9 1416 38.54
16
6
4033 Phone List   151 7012 31.55
16
14
7208 Black or White   58 1457 42.76
16
19
6256 Inversion Count   532 17161 31.69
16
18
5970 Finding Primes   22 1332 27.88
16
15
26575 Grand Reward   9 431 58.82
16
8
30919 Sabbir and gcd problem   17 309 22.14
16
16
203 Potholers   22 2266 26.46
16
12
8 Complete the Sequence!   32 4408 37.45
16
18
1538 Making Jumps   11 1447 38.92
16
15
21083 Lexicographically Smallest   14 245 33.23
16
17
30454 Luke vs. Darth Vader   15 219 22.16
16
15
1798 Assistance Required   14 2349 45.19
16
7
2742 Summing Sums   17 911 19.01
16
23
25784 Bubble Sort   10 664 20.83
16
17
3964 Investment Money   15 617 25.57
16
17
4164 A conjecture of Paul ErdÅ‘s   23 2246 44.04
16
14
4226 Japan   30 1752 23.29
16
19
13015 Counting Primes   33 1377 22.04
16
14
25773 Bit Difference   18 415 34.73
16
19
26193 Lost and survived   46 831 35.20
16
12
27217 Minimum Sum   13 186 41.12
16
12
34686 Meet Her Fast!   7 139 41.47
16
12
2530 Tiling a Grid With Dominoes   58 2401 64.99
16
23

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