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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
10798 Wachovia Bank   58 3803 46.87
7
9
12933 n-divisors   59 2285 19.28
18
17
18284 Petya and the Road Repairs   59 875 24.01
19
22
1028 Hubulullu   60 8196 58.77
2
15
1837 Pie   60 3796 30.38
18
15
2713 Can you answer these queries IV   60 3658 16.92
21
21
2906 GCD2   60 6786 36.48
12
11
3921 The Great Ball   60 3923 39.09
7
11
8869 Roti Prata   60 6706 39.84
16
18
15965 PLAY WITH MATH   60 6822 46.45
4
5
9734 Hacking the random number generator   61 5727 38.83
8
6
13753 Amazing Prime Sequence   61 3303 29.76
11
12
18155 abs(a-b) I   61 4472 48.13
5
9
22776 Balika Vadhu and Alok Nath   61 1184 33.35
14
18
35674 COLORFUL ARRAY   61 1506 41.51
20
21
7386 Activities   62 1416 25.48
16
19
10628 Count on a tree   62 2295 16.96
32
31
10707 Count on a tree II   62 2834 19.07
31
31
11372 Blueberries   62 2215 33.53
12
13
27307 Alternating Sequences   62 2088 32.43
8
9
1296 4 values whose sum is 0   63 5051 24.87
18
14
11516 VALIDATE THE MAZE   63 3036 32.09
11
8
21326 Akbar , The great   63 2380 15.73
21
18
138 Election Posters   65 2261 25.61
20
21
503 Prime Intervals   65 1728 15.78
21
19
9032 Cube Free Numbers   65 4117 31.68
12
11
9788 Friends of Friends   66 7106 63.23
7
5
78 Marbles   67 7865 34.95
15
13
8238 N-Factorful   67 2465 26.40
17
16
11772 Negative Score   67 3371 34.31
10
11
1108 Card Trick   68 2175 50.37
21
24
3978 Distance Query   68 1654 31.97
24
21
6471 Printing some primes   68 6882 28.58
13
12
1724 Counting Triangles   69 13014 34.03
7
21
7588 Wise And Miser   69 5352 67.83
8
10
10283 ALL IZZ WELL   69 3429 31.26
17
14
379 Ambiguous Permutations   70 12291 59.53
4
5
11404 Save Thy Toys   70 2809 30.18
12
15
8611 Non-Decreasing Digits   71 3715 54.78
7
11
22403 Divisors of factorial   71 1908 29.75
14
14
10394 Buying Apples!   72 5369 34.90
12
14
288 Prime or Not   73 4922 18.78
21
22
3749 Subset Sums   73 4003 26.28
17
20
18167 SubXor   73 1642 30.38
25
29
247 Chocolate   74 5700 44.33
10
18
6294 Yodaness Level   74 3518 49.22
15
16
12150 Just Next !!!   74 6510 23.10
12
11
339 Recursive Sequence   75 3608 50.04
20
17
2939 Query on a tree V   75 1720 27.78
29
30
5117 Wine trading in Gergovia   76 5297 33.98
9
12

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