list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
9066 Sum of Distinct Numbers   26 336 14.40
32
32
6517 Farmer Sepp   7 335 21.97
28
26
8419 Traversing Grid   1 334 24.31
17
17
14928 Pyramidal Constructions   -1 333 49.80
28
23
6059 Another GCD problem   332 45.67
10405 Shooting the balloons!   11 332 35.88
23
27
32900 K-dominant array   3 332 31.08
30
30
34096 Counting Divisors (general)   5 332 35.48
42
45
904 Image Perimeters   3 331 59.24
17
17
7882 Tabovi   3 331 49.62
34
34
11326 Arithmetic Evaluation   3 331 40.09
1
9
2715 Glasnici   3 330 37.54
26
30
7210 Draw Mountains   5 330 43.85
17
6
20775 Roger and tree   22 330 27.93
17
22
32235 SOLVEIT   10 329 25.43
5
11
131 Square dance   328 50.26
1
1
2175 Emoticons   3 328 21.95
23
28
44 Substitution Cipher   3 326 13.57
17
17
34929 x-Xor It!   9 326 28.09
20
17
153 Balancing the Stone   2 324 32.92
17
23
7109 Indicator of progression   2 324 23.87
17
17
2322 Tree Game   2 323 43.34
26
42
5468 Going to school   8 323 35.97
15
34
4485 MobiZone vs VinaGone   7 322 33.31
17
31
11962 Arya Rage   4 322 42.43
17
26
14943 Dynamically-Rooted Tree   21 322 30.97
21
23
25854 Palindrome Or Not   10 322 16.29
14
9
1790 Binary Search Heap Construction   6 321 23.11
21
22
6650 Consecutive sequence   4 321 45.02
20
17
13106 KOSARE   3 321 49.50
23
39
26305 Lights On!   6 321 26.02
17
24
1771 Yet Another N-Queen Problem   2 320 24.41
17
34
8425 Coloring Trees   10 320 30.30
20
31
21177 Distracted judges   6 320 44.67
13
17
27000 Shoot and kill   12 319 23.63
21
21
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
17559 Two Game   5 317 36.97
1
39
33795 Taskin and apple tree   8 317 27.33
6
6
7209 Closest Triplet   2 316 29.21
24
21
21525 Red John is Back   5 315 53.58
6
17
16300 Playing with isosceles triangle   5 314 27.03
13
21
32946 Ada and Branches   19 314 35.85
18
19
3579 Disjoint Paths   4 312 20.65
24
27
15558 Let us play with strings   7 312 39.01
20
17
28449 Ada and List   11 312 22.00
14
17
34013 Seetha’s Unique Game   -2 312 58.70
1
3
4302 (K,N)-Knight   3 311 24.80
14
24
24689 Fibo and non fibo   10 311 32.58
18
18

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