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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
2905 Not a Triangle   93 5001 38.65
11
11
36668 Not So Blind Escape   2 7 31.94
34
42
5451 Not So Flat After All   9 1122 42.62
11
10
86 November Rain   4 294 17.54
21
21
12321 NSquare Sum ( Easy )   2 92 60.45
1
17
12322 NSquare Sum ( Medium )   58 44.31
34
17
33777 NT Games   12 75 41.75
19
23
32724 nth number   4 634 24.58
12
11
25024 Nth Prime   6 91 17.24
34
39
12056 Nubulsa Expo   9 11.01
1810 Nuclear Plants   21 13.83
7260 Number Game   1 91 25.51
17
17
2738 Number Guessing Game   42 4629 62.54
8
13
8991 Number Guessing Game 2   3 130 36.05
17
42
2125 Number Labyrinth   2 61 24.84
17
17
15996 Number Magic II   23 28.35
26
17
27313 Number of Binary Trees   5 72 44.39
6
17
7718 Number of common divisors   86 6933 24.80
12
13
7586 Number of Palindromes   9 1329 46.25
13
13
8277 Number of Prime Strings   3 91 18.95
23
28
411 Number of quite different words   4 238 33.43
17
27
27317 Number of score sequences   8 79 46.67
14
19
1112 Number Steps   84 33876 43.16
4
4
11202 Number Theory   32 31.12
39
39
1699 Numeral System   13 2217 67.16
6
3
94 Numeral System of the Maya   4 2581 40.51
10
6
19297 Nymphs from H10   27 31.37
6172 OAE   7 1159 41.30
12
26
10820 Obsession   4 32 23.98
39
39
6977 Odd Independent Sets   13 55.56
3107 Odd Numbers of Divisors   27 1046 18.26
22
22
18469 Office Mates   1 51 31.70
17
34
293 Officers on the Beat   11 21.43
23737 Ogledala   1 21 38.04
34
17
21395 Ohani And Binary Search Tree   -1 127 36.31
50
17
25214 Ohani And The Game   77 19.89
11
8
21394 Ohani And The Series   4 598 42.05
17
17
1697 Ohgas' Fortune   4 706 64.40
9
4
27098 Oil   1 80 25.94
17
34
3007 Oil Company   3 178 25.08
23
28
8820 Okret   3 40 19.32
39
34
15631 On the Plus Side   4 37 29.55
12
17
16275 On the side of the road   2 84 21.79
34
26
1465 On the Way to Find Chris   2 57 15.22
26
26
23516 One day with string   10 234 35.99
7
10
36423 One Eight_Nine   3 194 36.17
3
9
2901 One Geometry Problem   9 1814 36.10
4
13
15091 One Good Base Deserves Another   3 57.14
34
1
2023 One Instruction Computer Simulator   41 11.22
42
42
27308 One more weird game   10 395 55.01
3
8

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