list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
964 Entrapment   6 337 23.90
17
24
6517 Farmer Sepp   7 337 22.03
28
26
13398 Contest Hall Preparation   1 337 43.30
15
12
131 Square dance   336 50.56
1
1
9066 Sum of Distinct Numbers   26 336 14.35
32
32
8419 Traversing Grid   1 335 24.25
17
17
6059 Another GCD problem   333 45.07
10405 Shooting the balloons!   11 333 35.93
23
27
14928 Pyramidal Constructions   -1 333 49.75
28
23
11326 Arithmetic Evaluation   3 332 40.21
1
9
904 Image Perimeters   3 331 59.24
17
17
7210 Draw Mountains   5 331 43.93
17
6
7882 Tabovi   3 331 49.62
34
34
32235 SOLVEIT   10 331 25.51
5
11
2715 Glasnici   3 330 37.51
26
30
20775 Roger and tree   22 330 27.93
17
22
2175 Emoticons   3 329 21.97
23
28
4485 MobiZone vs VinaGone   7 327 33.45
17
31
44 Substitution Cipher   3 326 13.57
17
17
13106 KOSARE   3 326 49.63
23
39
34929 x-Xor It!   9 326 28.09
20
17
153 Balancing the Stone   2 325 32.96
17
23
7109 Indicator of progression   2 324 23.87
17
17
14943 Dynamically-Rooted Tree   21 324 31.02
21
23
2322 Tree Game   2 323 43.34
26
42
5468 Going to school   8 323 35.97
15
34
26305 Lights On!   6 323 26.13
17
24
1790 Binary Search Heap Construction   6 322 23.12
21
22
11962 Arya Rage   4 322 42.43
17
26
25854 Palindrome Or Not   10 322 16.29
14
9
1771 Yet Another N-Queen Problem   2 321 24.44
17
34
6650 Consecutive sequence   4 321 44.93
20
17
27000 Shoot and kill   12 321 23.36
21
21
8425 Coloring Trees   10 320 30.30
20
31
21177 Distracted judges   6 320 44.67
13
17
1784 IOICamp Sequence   1 318 12.68
1
17
8505 Nacci Fear   6 318 40.34
24
21
1166 Dead Fraction   317 23.27
12
17
7209 Closest Triplet   2 317 29.14
24
21
17559 Two Game   5 317 36.97
1
39
32946 Ada and Branches   19 317 36.02
18
19
33795 Taskin and apple tree   8 317 27.31
6
6
21525 Red John is Back   5 315 53.58
6
17
16300 Playing with isosceles triangle   5 314 26.99
13
21
28449 Ada and List   11 314 22.03
14
17
30919 Sabbir and gcd problem   17 314 22.29
16
16
15558 Let us play with strings   7 313 38.94
20
17
898 Transmitters   2 312 49.34
28
17
3579 Disjoint Paths   4 312 20.65
24
27
34013 Seetha’s Unique Game   -2 312 58.70
1
3

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