list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
22393 KATHTHI   57 2104 33.02
16
17
30738 Ada and Coins   57 831 31.55
14
22
348 Expedition   58 2250 20.66
20
20
3878 Rectangles Perimeter   58 2698 49.87
12
14
7208 Black or White   58 1479 42.45
16
19
10514 K12 - Building Construction   58 2005 26.13
12
16
10798 Wachovia Bank   58 4020 46.79
7
9
3693 Maximum Sum   59 6560 42.35
19
18
28305 Ada and Indexing   59 2178 42.06
15
15
1837 Pie   60 4061 30.36
18
15
2530 Tiling a Grid With Dominoes   60 2429 64.84
16
24
2713 Can you answer these queries IV   60 4239 17.60
21
21
2906 GCD2   60 6841 36.48
12
11
3921 The Great Ball   60 3943 39.13
7
11
12933 n-divisors   60 2330 19.35
18
17
15965 PLAY WITH MATH   60 6894 46.48
4
5
18284 Petya and the Road Repairs   60 887 23.98
19
22
1028 Hubulullu   61 8251 58.72
2
15
13753 Amazing Prime Sequence   61 3352 29.91
11
12
18155 abs(a-b) I   61 4638 47.98
5
9
22776 Balika Vadhu and Alok Nath   61 1198 33.46
14
18
7386 Activities   62 1439 25.53
16
19
9734 Hacking the random number generator   62 5869 39.02
8
6
10628 Count on a tree   62 2556 17.28
32
31
11372 Blueberries   62 2243 33.61
12
13
27307 Alternating Sequences   62 2117 32.56
8
9
8869 Roti Prata   63 7316 39.52
15
17
1296 4 values whose sum is 0   64 5111 24.90
18
14
11516 VALIDATE THE MAZE   64 3151 32.16
11
8
21326 Akbar , The great   64 2636 15.99
21
17
138 Election Posters   65 2314 25.74
20
21
9032 Cube Free Numbers   65 4159 31.74
12
11
35674 COLORFUL ARRAY   65 1718 41.27
20
21
503 Prime Intervals   66 1800 16.03
21
19
9788 Friends of Friends   67 7143 63.27
7
5
11772 Negative Score   67 3435 34.17
10
11
78 Marbles   68 8131 34.97
15
13
1108 Card Trick   68 2228 50.36
21
24
1724 Counting Triangles   69 13175 34.00
7
21
10707 Count on a tree II   69 3446 19.49
31
30
3978 Distance Query   70 1873 32.93
24
21
7588 Wise And Miser   70 5479 67.51
8
10
8238 N-Factorful   70 2720 26.65
17
16
10283 ALL IZZ WELL   70 3483 31.38
17
14
11404 Save Thy Toys   70 2818 30.16
12
15
379 Ambiguous Permutations   71 12367 59.60
4
5
6471 Printing some primes   71 7663 28.86
13
11
8611 Non-Decreasing Digits   71 3728 54.82
7
11
22403 Divisors of factorial   71 1971 29.84
14
14
288 Prime or Not   73 5341 19.15
21
22

Most popular tags