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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
15429 Counting Ids   15 1925 49.88
5
5
15560 Help the old King   15 524 37.25
15
15
15620 Postering   15 615 31.98
17
21
15766 Enjoy Sum with Operations   15 361 27.34
20
26
17110 Black Widow Rings   15 2718 52.09
3
3
17113 Finding the Tesserect   15 907 37.22
11
15
17918 Gopu and Validity of Arrangement   15 1653 43.24
3
6
18174 REAL ROOTS   15 1264 60.40
6
12
18273 Encode Integer   15 795 25.18
8
7
18714 Can You Make It Empty 2   15 1318 29.16
8
11
18965 Milk Scheduling   15 983 24.93
10
15
21347 Tulip And Numbers   15 976 22.35
14
14
25158 Star   15 310 34.43
12
19
26212 Keyur and Mohib Tree   15 213 40.30
8
12
28265 Ada and Rain   15 397 54.72
10
14
28609 Boat Burglary   15 143 14.25
23
25
30454 Luke vs. Darth Vader   15 219 22.16
16
15
32103 Degree of a Tree   15 217 29.66
13
12
32840 Ada and Digits   15 168 41.33
20
18
32951 Ada and Substring   15 383 35.76
20
22
36226 Reduce the array   15 679 29.09
4
6
207 Three-coloring of binary trees   16 875 35.88
20
17
277 City Game   16 1289 38.93
20
21
1391 Summing to a Square Prime   16 1417 54.07
12
17
2371 Another Longest Increasing Subsequence Problem   16 797 13.46
29
33
2699 Recursive Sequence (Version II)   16 999 26.28
26
24
8042 Possible Friends   16 1132 37.00
12
10
8057 Square Free Factorization   16 1395 41.31
7
15
10477 GM plants   16 341 29.11
25
30
10712 Easy Calculation   16 1365 35.79
10
14
13805 X-MEN   16 893 27.52
17
19
14888 Good Predictions   16 1043 41.56
5
9
15208 Minimum Cost   16 1412 57.49
9
11
15995 Self Numbers   16 901 38.30
12
6
18176 FRIENDSHIP!!!   16 629 27.02
15
21
20644 Zero Query   16 662 19.65
30
27
26745 Grid   16 643 32.33
13
9
26771 Almost Prime Numbers Again   16 276 18.87
24
20
27367 Game of Squares   16 460 40.79
7
9
28409 Ada and Cycle   16 871 26.87
14
17
30116 Can you draw it or not?   16 194 38.53
5
9
30500 THE HONEYCOMB MAZE   16 637 27.33
17
15
30735 Ada and Island   16 427 37.28
13
13
31290 Math is Love   16 1098 40.43
6
5
32058 Harbinger vs Sciencepal   16 167 34.83
17
21
32059 Ada and Taxes   16 103 37.23
23
23
33210 Ada and Alley   16 373 37.00
7
14
34875 Minimum Stocks   16 636 25.66
13
12
36142 Random modulo n   16 74 57.98
8
15
137 Partition   17 780 36.67
17
20

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