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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
21671 Jumppy and the Grid   4 61 32.40
21
21
21644 Walls   1 21 34.94
17
34
21643 Unhappy Numbers   6 45 36.75
31
31
21642 Tsunami   3 138 41.96
28
23
21640 Nested Palindromes   2 25 20.81
38
38
21636 Electric Car Rally   1 14 45.65
34
17
21635 Beautiful Mountains   1 16 39.68
17
34
21616 Game of chocolate   3 581 30.85
5
5
21615 Playing with GCD   21 914 34.96
12
14
21599 POWER LEFT   1 108 20.96
21
14
21597 The Hack   1 20 15.82
1
34
21585 Hazzat’s Query   70 25.76
21572 Marble & store   3 120 20.15
17
15
21526 Rotating Cube   7 111 51.99
15
6
21525 Red John is Back   5 315 53.58
6
17
21524 Pattern Find   79 4442 38.15
10
13
21463 Arithmetic Rectangle   34 21.27
21462 Final Assignment   2 51 31.85
9
1
21461 Field   7 267 37.34
12
10
21460 Tresi and Girls   3 66 23.21
17
21
21458 Satay Skewer   2 80 26.71
34
17
21457 House Fence   5 143 27.93
9
21
21456 I Ken Bit Yu   5 117 30.99
9
21
21418 Interesting Game with Polygons   1 33 29.27
17
34
21414 Count The Indexes 2   5 41 18.11
37
24
21409 2x2 Subgrid Sum Problem (generalized)   1 6 42.11
21407 2x2 Subgrid Sum Problem (medium)   17 21.24
21396 Taklu Kuddus   4 101 7.92
30
21
21395 Ohani And Binary Search Tree   -1 126 36.27
50
17
21394 Ohani And The Series   4 597 42.02
17
17
21360 Suffix Equal Prefix   5 488 28.39
13
13
21357 Crucial Equation   79 6010 38.17
4
9
21356 Divisible Number Sum   8 46 18.67
26
23
21354 String Problem   4 25 35.80
26
26
21353 Avantgarde and Doughnut   5 19 45.90
21
34
21352 Avantgarde and Bicycle   22 37.84
21347 Tulip And Numbers   15 962 22.68
14
14
21332 Pigeonhole Tower   7 1749 35.70
4
6
21326 Akbar , The great   63 2390 15.71
21
18
21284 Can You Make It Empty 3   6 93 31.36
15
20
21193 Adjusting Ducks   3 62 30.86
20
27
21187 Increasing Shortest Path   2 29 18.57
26
34
21178 Encryption kit   49 31.15
21177 Distracted judges   7 314 45.06
15
15
21176 Stapled intervals   49 60.67
21175 Rush hour   141 41.77
21174 Gallantry   1 396 51.18
14
11
21173 String fertilization   58 45.23
21172 Erdos et al   3 137 36.57
26
26
21171 Fractal domino   14 50.88

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