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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
212 Water among Cubes   51 1462 26.14
25
27
8363 COSTLY CHESS   23 1455 43.92
14
12
13707 SHAHBAG   9 1452 39.17
4
5
13769 Roommate Agreement   50 1452 31.12
11
17
227 Ordering the Soldiers   21 1442 33.16
21
23
10620 KNJIGE   27 1439 44.33
4
18
7208 Black or White   58 1436 43.46
16
19
870 Basically Speaking   7 1434 43.70
6
6
27318 Primal Fear   29 1433 22.35
14
14
1538 Making Jumps   11 1432 39.18
16
15
3944 Bee Walk   18 1420 56.29
11
15
10285 Why this kolaveri di   21 1418 53.11
12
21
7386 Activities   62 1416 25.47
16
19
10416 Van Helsings gun   3 1416 54.01
6
13
1391 Summing to a Square Prime   16 1415 54.06
12
17
10366 Play with Dates   9 1411 38.46
16
6
25131 Largest Odd Divisor   17 1402 33.38
6
7
18937 Touch of Venom   21 1399 23.24
11
13
110 Fill the Cisterns   28 1398 31.30
21
20
10968 LUCIFER Number   41 1394 64.84
21
21
7132 Headshot   7 1388 37.16
8
14
8057 Square Free Factorization   16 1384 41.43
7
15
4201 Coder Ratings   26 1383 35.97
15
18
338 Roads   37 1379 23.85
17
22
17112 Training Land of Fury   18 1379 47.78
9
9
15208 Minimum Cost   16 1377 57.66
9
11
8547 Euclids algorithm revisited   27 1376 23.06
19
22
3868 Total Flow   11 1373 36.15
14
13
15650 Dark roads   27 1369 36.29
10
10
3374 Scavenger Hunt   10 1362 50.31
9
10
10381 Search in the dictionary!   34 1360 25.92
17
11
3407 Candy   30 1357 42.64
11
19
3861 Laser Phones   30 1355 28.59
20
18
10712 Easy Calculation   16 1354 35.69
10
14
5979 Yet Another Permutations Problem   5 1351 49.49
7
15
17 The Bytelandian Cryptographer (Act I)   8 1342 41.88
15
26
660 Dungeon of Death   14 1339 42.87
13
26
26315 Crazy Smoker   23 1338 35.34
4
9
26607 CODER FIRST PROBLEM   34 1338 57.20
6
7
8995 CANDY   9 1330 38.31
8
6
5970 Finding Primes   22 1326 27.86
16
15
15655 Product of factorials   20 1316 23.42
19
19
18714 Can You Make It Empty 2   15 1314 29.16
8
11
13015 Counting Primes   32 1306 21.63
16
14
3184 Game of Lines   8 1299 27.73
14
9
15086 Land Acquisition   37 1297 28.30
24
30
35 Equipment Box   6 1295 14.63
7
20
11391 EASY MATH   24 1290 20.00
20
18
3969 M&M Game   12 1288 42.10
4
17
10186 Divisor Digits   6 1279 30.91
8
12

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