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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
14122 Inverse of Recurrence Problem With a Square Root   3 59 49.56
23
45
6256 Inversion Count   532 17161 31.69
16
18
7232 Inversion Sort   5 156 17.14
32
23
3964 Investment Money   15 617 25.57
16
17
7870 Invisible point   17 1657 42.84
4
18
50 Invitation Cards   29 1733 42.92
16
18
6956 IOI2009 Mecho   3 162 18.09
28
23
1784 IOICamp Sequence   1 318 12.68
1
17
11198 Ipad Testing   2 47 41.28
34
1
11509 IPL - CRICKET TOURNAMENT   1 77 25.00
17
17
9950 IQ Team   37 41.59
50
50
4421 Irreducible polynomials over GF2   62 18.01
1436 Is it a tree   337 20612 35.22
10
10
9943 Isabella Message   1 67 24.08
17
17
5159 Island Explorer   34 15.28
2274 Island Hopping   1 202 24.91
17
1
8097 Islands   70 46.63
6622 Islands and Hotel Chains   2 61 9.54
45
34
23383 ISOMORPH   28 43.65
13809 ISRANK   1 20 33.54
50
50
7356 Iterated Bitcount Function   2 35 16.95
42
34
10810 Its a Murder!   55 2381 22.05
16
17
734 Ivan and his interesting game   228 34.45
17
17
4154 IZBORI   36 24.54
16212 Jailbreak   4 72 54.86
17
12
34011 Jalil Got TLE   12 498 25.41
6
8
6187 Jane and Tarzan   6 213 24.46
17
26
31755 Januarius, The Travelling Clairvoyant   24 29.66
4226 Japan   30 1752 23.29
16
19
7427 Jara’s Legacy   81 39.79
21104 Jarin Loves New Task   6 44 37.28
21
21
55 Jasiek   3 465 28.17
21
13
1163 Java vs C ++   17 5510 22.86
14
5
2422 Jazzy Job   2 62 35.19
9
17
3752 JEDNAKOST   12 595 18.40
23
21
34623 Jeremías y sus loros   5 268 68.93
9
13
30944 Jerry and his cheese   30 31.16
17
17
226 Jewelry and Fashion   1 20 28.54
34
50
9944 Ji-Tu Problem   14 11.28
408 Jill Rides Again   2 939 34.11
9
9
9506 Jimmy´s Travel Plan   17 39.69
5160 Jinyuetuan Puzzle   40 36.69
11875 Jobs   1 353 38.65
1
17
142 Johnny and the Glue   105 38.04
17
17
274 Johnny and the Watermelon Plantation   -1 213 24.34
1
1
12409 Johnny at school   1 72 23.63
17
17
12399 Johnny Hates Climbing   3 113 23.37
21
13
12398 Johnny Listens to Music   86 33.84
12397 Johnny plays with connect 4   2 54 31.36
17
12
12408 Johnny Studies Genetics   39 36.45

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