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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
2125 Number Labyrinth   2 61 24.84
17
17
8991 Number Guessing Game 2   3 130 36.05
17
42
2738 Number Guessing Game   42 4629 62.54
8
13
7260 Number Game   1 91 25.51
17
17
1810 Nuclear Plants   21 13.83
12056 Nubulsa Expo   9 11.01
25024 Nth Prime   6 91 17.24
34
39
32724 nth number   4 634 24.58
12
11
33777 NT Games   12 75 41.75
19
23
12322 NSquare Sum ( Medium )   58 44.31
34
17
12321 NSquare Sum ( Easy )   2 92 60.45
1
17
86 November Rain   4 294 17.54
21
21
5451 Not So Flat After All   9 1122 42.62
11
10
36668 Not So Blind Escape   2 7 31.94
34
42
2905 Not a Triangle   93 5001 38.65
11
11
11473 NOS   2 182 25.73
1
50
8106 Normalized Form   6 274 36.52
17
17
22343 Norma   2 205 24.68
34
17
10111 Nonnegative Partial Sums   15 511 29.84
19
19
8283 Non-Decreasing Numbers   2 26 25.17
50
50
8611 Non-Decreasing Digits   71 3719 54.80
7
11
30961 Non Coprime Sequences(Hard)   4 16 7.64
34
34
30945 Non Coprime Sequences   2 20 21.08
50
50
35281 Noel and His Reindeer   5 27 45.35
21
13
9975 No Stories Any More!   1 46 29.02
34
34
8496 No Squares Numbers   18 835 34.91
19
15
26778 NO GCD   11 101 22.34
29
38
1847 No Change   37 1672 36.21
11
14
12866 Nlogonian Tickets   12 286 20.29
25
24
11458 Ninja   122 15.44
8624 Nim-B Sum   -1 619 61.11
9
17
9219 Nikhil Problem   2 223 46.31
17
17
15554 Niceness of the string   12 1157 36.41
7
2
6738 Nice Quadrangles   176 42.55
13384 Nice Binary Trees   26 1788 39.41
9
13
34622 NICE SEQUENCES   17 145 50.93
11
13
25959 Next Lexicographically Greater Substring   4 43 21.43
23
23
13055 New Year Train   1 54 55.35
1
17
18102 New year love story   2 80 26.46
34
34
28462 New TAP   1 37 32.68
17
17
13090 New Strategy   3 144 33.43
9
9
25383 New Lottery Game   7 49 19.46
17
15
9434 New Horizons   11 31.75
7602 New Game with a Chess Piece   4 220 31.00
17
34
705 New Distinct Substrings   41 3727 26.36
26
24
35954 New Data Type   1 120 18.39
6
6
77 New bricks disorder   1 285 37.82
17
17
19561 New Binary   7 294 42.61
13
26
21640 Nested Palindromes   2 25 20.81
38
38
3943 Nested Dolls   30 1223 23.63
20
27

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