list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1161 Tic-Tac-Toe ( I )   20 3236 22.87
12
10
9820 Through the troops   29 1953 44.86
12
11
11404 Save Thy Toys   70 2809 30.18
12
15
8545 Subset sum   45 1923 39.93
12
16
1391 Summing to a Square Prime   16 1415 54.06
12
17
3033 Help the soldier   18 1242 29.06
12
14
8042 Possible Friends   16 1116 37.05
12
10
2416 Distinct Subsequences   94 3689 36.21
12
22
10145 Birthday Cake   7 257 36.82
12
12
9032 Cube Free Numbers   65 4117 31.67
12
11
4031 Mass of Molecule   29 2561 48.13
12
9
9722 Insertion Sort   28 3825 30.68
12
12
28 Help the Military Recruitment Office!   6 772 16.10
12
9
15995 Self Numbers   16 900 38.28
12
6
3377 A Bug’s Life   342 15194 27.38
12
13
530 Divisors 2   10 901 52.43
12
16
726 Promotion   24 2062 28.21
12
8
8916 Villages by the River   7 268 23.71
12
19
9126 Time to live   48 2021 37.76
12
15
10514 K12 - Building Construction   57 1884 25.63
12
17
14507 GAME2   10 97 25.93
12
11
21461 Field   7 267 37.34
12
10
4564 Chop Ahoy! Revisited!   55 2940 50.88
12
14
18941 True Friends   29 936 50.66
12
12
26054 BMW   21 606 17.63
12
14
10401 Aliens at the train   85 4356 29.25
13
10
34020 Ada and Pet   29 622 26.83
13
19
377 Taxi   14 1235 28.41
13
16
665 String it out   22 1215 38.75
13
16
1871 Making A Budget   15 866 48.46
13
15
2007 Another Very Easy Problem! WOW!!!   17 759 39.02
13
28
2050 Strange Billboard   10 799 60.65
13
29
11321 G-One Sort   5 773 38.08
13
17
13381 Manku Word   31 2096 46.95
13
15
18939 K-th smallest number   5 209 13.84
13
17
26646 An easy Problem   7 63 54.55
13
19
28547 Ada and Easy Game   6 96 28.16
13
24
28784 IIITM Student   5 86 51.27
13
15
32103 Degree of a Tree   15 215 29.53
13
12
34376 Difference One Swaps   7 72 48.54
13
17
34705 Secret Recipe   7 145 38.48
13
11
35147 Bermuda Love Triangle   6 43 57.43
13
15
36537 Koala Fan   8 40 23.28
13
10
2884 Martian Mining   87 2267 47.79
13
22
5161 Factorial vs Power   14 1113 26.18
13
15
11354 Amusing numbers   52 3231 59.87
13
15
740 Treats for the Cows   260 8471 42.60
13
14
4168 Square-free integers   12 603 43.73
13
19
7897 Skyline   11 855 32.41
13
27
15433 Greedy Walking   12 409 50.33
13
16

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