list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
7210 Draw Mountains   5 337 44.33
17
6
30919 Sabbir and gcd problem   17 337 23.05
16
16
4485 MobiZone vs VinaGone   7 339 33.83
17
31
25854 Palindrome Or Not   11 339 16.57
12
8
898 Transmitters   2 340 49.27
28
17
964 Entrapment   6 340 23.99
17
24
6517 Farmer Sepp   7 340 22.08
28
26
9570 Counting binary strings   7 340 53.14
17
24
44 Substitution Cipher   3 341 13.83
17
17
8419 Traversing Grid   1 341 22.86
17
17
13398 Contest Hall Preparation   1 341 43.42
15
12
1707 Reliable Nets   4 342 31.51
28
23
6059 Another GCD problem   342 45.16
2414 Calculate The Cost   8 343 22.37
28
17
14943 Dynamically-Rooted Tree   21 343 31.12
21
23
20775 Roger and tree   22 343 27.78
17
22
7380 Factorial challenge   5 344 31.49
14
26
10477 GM plants   16 344 29.20
25
30
12365 Ball of Reconciliation   3 345 52.27
17
17
17400 Height of Expectation   1 345 53.43
8
13
2055 Weird Numbers   2 346 35.99
17
17
9507 Mario and Mushrooms   346 57.00
1
34
32235 SOLVEIT   10 346 25.88
5
11
32946 Ada and Branches   19 346 36.32
18
19
10405 Shooting the balloons!   11 347 36.02
23
27
395 Anti-prime Sequences   3 349 47.83
9
9
2715 Glasnici   3 349 37.40
26
30
25144 Truncky Numbers   20 349 29.04
17
17
388 Menu   7 352 19.00
25
16
7685 Flowers   4 352 32.98
13
26
13367 EVEN COUNT   8 352 23.15
28
19
131 Square dance   353 50.10
1
1
3975 Most Servings Meal   8 354 26.37
28
28
7035 The Embarrassed Cryptographer   5 358 32.25
13
13
17397 End of Fun   14 358 27.71
17
16
19985 GCD Extreme (hard)   2 358 36.57
26
34
1683 Expressions   359 39.87
1
17
27320 Card Game   13 359 38.80
9
14
34929 x-Xor It!   10 359 28.07
20
17
5833 XOR Rounds   2 360 30.83
9
13
6221 Increasing Powers of K   4 360 27.59
24
34
9066 Sum of Distinct Numbers   26 360 14.77
32
32
17819 XYI   4 360 38.55
17
9
18182 Naughty and Balls   3 361 41.69
6
17
11326 Arithmetic Evaluation   3 362 40.31
1
9
11875 Jobs   1 362 38.94
1
17
26314 Corn Headache   7 362 35.04
8
9
693 Lethal Warfare   2 365 46.51
6
12
12364 Awari 2   3 365 48.99
14
21
13042 Gandalf vs the Balrog   -2 365 50.71
1
1

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