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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
30351 Quest Hunter   10 18.18
8583 Garden   1 20 63.89
17
34
1771 Yet Another N-Queen Problem   2 320 24.41
17
34
18905 Kapti and Balu   1 38 32.65
17
17
18963 Bhagat The Bit Man   10 655 31.58
5
12
12321 NSquare Sum ( Easy )   2 92 60.45
1
17
12322 NSquare Sum ( Medium )   58 44.31
34
17
1112 Number Steps   84 33876 43.16
4
4
8222 Substrings   6 1243 29.38
23
26
8747 Substrings II   6 145 10.58
34
30
1699 Numeral System   13 2217 67.16
6
3
33777 NT Games   12 75 41.75
19
23
25024 Nth Prime   6 91 17.24
34
39
12866 Nlogonian Tickets   12 286 20.29
25
24
35151 Beautiful Roll Numbers   8 69 63.58
15
8
8074 God of Number Theory   1 29 36.45
34
50
7260 Number Game   1 91 25.51
17
17
7586 Number of Palindromes   9 1329 46.25
13
13
26719 Gutibazi   10 491 47.49
3
6
11300 Fun with numbers   3 295 35.54
12
17
411 Number of quite different words   4 238 33.43
17
27
11202 Number Theory   32 31.12
39
39
11180 369 Numbers   17 777 12.41
26
24
4588 SETI   125 67.74
15649 Unequalled Consumption   1 12 19.12
17
34
8628 Selling Land   70 46.89
8629 Stock Prices   1 98 44.77
17
17
9887 Binomial coefficients   1 154 26.64
34
34
9888 Bird tree   1 297 65.18
34
42
9889 Movie collection   1 213 43.40
50
50
9890 Piece it together   94 24.01
9891 Please, go first   215 54.01
26
17
9892 Pool construction   1 90 56.90
1
34
9893 Smoking gun   40 27.98
9894 Tichu   2 78 38.41
26
17
9895 Tracking RFIDs   52 31.94
9896 Train delays   44 25.40
8612 Penney Game   38 7663 67.55
4
3
8624 Nim-B Sum   -1 619 61.11
9
17
8625 Just The Simple Fax   1 76 41.10
34
17
8626 Show Me The Fax   1 105 41.99
8611 Non-Decreasing Digits   71 3719 54.80
7
11
8627 I2C   32 25.79
5160 Jinyuetuan Puzzle   40 36.69
6172 OAE   7 1159 41.30
12
26
3107 Odd Numbers of Divisors   27 1046 18.26
22
22
23516 One day with string   10 234 35.99
7
10
36423 One Eight_Nine   3 194 36.17
3
9
293 Officers on the Beat   11 21.43
2178 He is offside!   5 8389 50.10
3
4

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