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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
2743 Prefix Tiling   1 166 27.86
17
34
10506 Prendonians   52 26.42
5093 Pretty Functions   1 43 22.67
3642 Pretty Printing   40 22.01
27318 Primal Fear   31 1757 22.01
13
13
3587 Prime Again   11 879 16.45
20
15
34975 Prime Friendly Numbers   10 45 20.11
28
26
2 Prime Generator   630 83230 16.32
15
14
15891 Prime Generator The Easiest Question Ever   13 1182 46.49
3
8
503 Prime Intervals   67 1827 16.14
21
19
30394 Prime is fun   8 87 35.71
22
24
34537 Prime Lover Finding   7 67 29.43
28
24
3505 Prime Number Theorem   25 1538 28.13
14
13
288 Prime or Not   73 5483 19.33
21
22
1841 Prime Path   338 10594 57.99
19
18
7322 Prime Pattern   1 97 36.16
23
17
8591 Prime Permutations   5 110 30.96
28
23
34118 Prime Pesticide   6 25 16.83
37
34
22086 Prime Power Test   2 16 13.55
42
17
22090 Prime Power Test (Hard)   11 19.02
50
50
19568 Prime queries   10 448 22.91
27
21
11736 Prime Time   25 2167 48.59
11
12
11103 PrimeFactorofLCM   5 600 25.71
17
17
4491 Primes in GCD Table   2 862 36.88
17
26
35675 Primes in GCD Table (Hard)   2 14 25.27
50
50
5703 Primes of Lambda   2 25 26.79
42
42
15164 primes triangle (I)   3 78 7.05
34
26
15165 primes triangle (II)   2 18 26.38
39
17
3713 Primitive Root   6 615 30.64
15
27
8456 PRIMITIVEROOTS   8 375 46.34
8
20
211 Primitivus recurencis   286 27.94
1
17
15243 Primos Quest   1 175 38.49
23
23
14930 Princess Farida   274 12258 26.80
7
10
12824 Print Big Binary Numbers   6 29.59
1840 Printer Queue   26 2997 48.07
14
9
6471 Printing some primes   71 7833 28.93
13
11
6488 Printing some primes (Hard)   11 200 15.38
35
29
34385 Pripyat   6 26.09
35810 Prismata   1 5 5.71
34
17
7862 Prisoner of Benda   27 25.83
26893 Pristojba   2 19 14.89
26
50
8910 Probablistic OR   2 176 58.46
17
30
8442 Problem 3   4 728 54.44
4
12
10573 Problem Offensive Strategy   1 72 23.25
17
17
9973 Problem Set Score   4 918 39.55
12
17
18297 Problem4   24 541 32.38
18
20
1815 Problems Collection (Volume X)   77 7.26
10586 Problems in Moria   41 28.98
27942 Product it again   6 149 33.08
24
20
15655 Product of factorials   20 1346 23.50
19
19

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