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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
203 Potholers   22 2266 26.45
16
12
665 String it out   22 1217 38.77
12
15
5970 Finding Primes   22 1334 27.90
16
15
6898 Substring Problem   22 828 15.13
23
23
7691 Homo or Hetero   22 1644 36.19
15
11
10442 Candy Distribution   22 3913 37.52
2
4
10500 Haybale stacking   22 3333 33.85
10
14
10537 Edit Distance Again   22 2536 42.10
4
6
10818 Medium Factorization   22 1720 14.20
18
14
15609 Spiky Mazes   22 976 35.23
15
12
16482 Make them equal !   22 2113 52.81
3
9
20775 Roger and tree   22 329 27.89
17
22
32579 Ada and Expenses   22 357 50.89
10
12
1557 Can you answer these queries II   23 1597 24.37
30
36
4164 A conjecture of Paul Erdős   23 2282 44.03
16
14
4557 Musical Chairs   23 2474 46.67
9
19
8363 COSTLY CHESS   23 1554 43.42
14
12
15285 Defend The Rohan   23 1260 43.52
5
8
15555 Check the coprimeness   23 3240 50.20
3
5
15567 Playing With Balls   23 1764 65.36
2
11
15980 Ascending Fibonacci Numbers   23 802 17.26
17
13
21853 Rivals   23 506 33.70
17
24
235 Very Fast Multiplication   24 1282 27.75
26
22
726 Promotion   24 2076 28.13
12
8
9756 Alaska   24 2924 35.81
5
3
13388 Easy Jug   24 2147 41.99
6
15
14955 Dancing Cows   24 592 24.86
15
22
18297 Problem4   24 536 32.42
18
20
22382 Euler Totient Function Depth   24 382 36.63
15
16
23847 Acm Teams   24 1647 40.37
2
5
26315 Crazy Smoker   24 1345 35.28
4
9
28304 Ada and Teams   24 772 38.43
15
15
29695 GO GOA GONE   24 857 24.76
12
12
365 Phidias   25 1212 47.21
13
21
1027 Fool the Police   25 1638 26.96
18
23
1846 Project File Dependencies   25 2140 41.05
14
15
3505 Prime Number Theorem   25 1527 28.08
14
13
3934 Recaman’s Sequence   25 3529 53.85
9
6
4235 Wandering Queen   25 842 15.07
23
19
10395 Sum of divisors!   25 2351 27.07
16
18
11391 EASY MATH   25 1363 20.04
19
17
11736 Prime Time   25 2156 48.47
11
12
18150 SHAKTIMAN AND KILWISH   25 2804 63.64
3
9
25584 Factorial Modulo   25 410 25.01
10
15
279 Interesting number   26 824 24.00
19
24
1728 Common Permutation   26 4163 46.56
6
6
1840 Printer Queue   26 2890 47.66
14
9
4053 Card Sorting   26 688 43.49
22
27
4201 Coder Ratings   26 1389 35.94
15
18
4343 Empty Boxes   26 3559 66.11
2
13

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