list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
17110 Black Widow Rings   13 2506 51.80
2
2
18150 SHAKTIMAN AND KILWISH   24 2498 64.81
3
9
1744 Evaluate the polynomial   14 2496 47.87
6
7
372 The Benefactor   39 2492 37.05
11
12
3878 Rectangles Perimeter   49 2475 49.64
10
13
94 Numeral System of the Maya   3 2470 40.27
11
5
4177 Herding   52 2457 37.13
13
15
29 Hash it!   10 2456 21.92
13
5
3638 Word Counting   8 2448 20.50
10
6
4557 Musical Chairs   22 2420 46.83
9
19
1840 Printer Queue   17 2396 49.82
13
8
1167 Move To Invert   12 2377 32.71
9
17
6470 Finding the Kth Prime   25 2358 30.43
22
16
10537 Edit Distance Again   18 2343 43.48
4
6
16 Sphere in a tetrahedron   11 2342 57.94
12
14
6 Simple Arithmetics   12 2333 12.42
31
8
17761 Gopu and Digits Divisibility   16 2308 43.65
4
3
4942 Integer Factorization (15 digits)   29 2269 32.33
13
13
2149 Biased Standings   16 2252 34.93
5
4
11516 VALIDATE THE MAZE   49 2245 34.30
10
8
11402 The Indian Connection   15 2237 36.67
8
13
1161 Tic-Tac-Toe ( I )   13 2232 23.92
7
8
3749 Subset Sums   44 2205 28.86
19
20
1798 Assistance Required   11 2199 45.60
16
7
6772 Happy Coins   11 2186 55.86
3
8
178 Road net   8 2185 49.23
9
8
339 Recursive Sequence   48 2180 54.56
18
15
4110 Fast Maximum Flow   36 2169 34.42
26
21
7190 Guess the Number   12 2122 33.07
4
9
1699 Numeral System   11 2114 70.34
6
4
106 Binary Stirling Numbers   2 2105 37.62
4
17
9637 Black and White   12 2082 54.76
4
5
10395 Sum of divisors!   23 2061 27.42
17
18
16121 MODIFY SEQUENCE   23 2043 50.12
5
7
364 Pocket Money   41 2031 39.04
15
19
101 Fishmonger   43 2023 39.09
18
21
263 Period   41 2019 44.41
11
18
1846 Project File Dependencies   23 2012 42.62
14
15
8551 Colours A, B, C, D   35 2011 21.36
9
23
11736 Prime Time   23 2000 48.83
11
12
7217 Training for final   23 1992 47.17
8
6
4031 Mass of Molecule   21 1991 49.71
12
9
4556 Think I will Buy Me a Football Team   24 1980 45.91
6
11
2530 Tiling a Grid With Dominoes   52 1974 69.19
15
23
2884 Martian Mining   71 1967 48.44
13
22
2881 Find the Clones   16 1962 45.20
9
6
203 Potholers   21 1960 27.41
17
13
11573 A Famous ICPC Team   7 1952 37.99
1
8
7668 Pebble Solver   15 1943 50.07
8
11
10639 The Blind Passenger   8 1939 44.82
4
5

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