1. Classical
  2. Challenge
  3. Partial
  4. Tutorial
  5. Riddle
  6. Basics

list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
8545 Subset sum   45 1943 40.12
12
16
9340 Arbitrage   37 1951 39.51
12
17
3978 Distance Query   71 1953 33.23
24
21
22403 Divisors of factorial   71 1985 29.90
14
14
3408 DNA Sequences   47 1992 26.14
16
20
10639 The Blind Passenger   9 1998 44.71
4
5
15429 Counting Ids   15 2008 49.51
5
5
7668 Pebble Solver   15 2009 50.46
8
11
12880 Sheep   40 2018 46.22
9
10
14441 Three Circle Problem (EASY)   13 2022 55.70
6
14
11573 A Famous ICPC Team   10 2046 37.71
2
8
2881 Find the Clones   17 2057 44.58
9
7
9126 Time to live   48 2058 37.70
12
15
9820 Through the troops   29 2059 44.44
12
11
23776 K-Query Online   86 2060 40.13
20
23
8725 Closest Point Pair   30 2068 20.75
18
21
33 Trip   17 2073 26.41
25
16
10514 K12 - Building Construction   60 2073 26.48
12
16
11840 Sum of Squares with Segment Tree   55 2087 51.04
23
19
4206 Fast Maximum Matching   33 2094 29.48
22
19
8371 TRIANGULAR PRISM   11 2096 68.43
2
8
7217 Training for final   26 2101 45.57
8
6
11374 Database   11 2101 34.28
6
6
1812 Longest Common Substring II   16 2102 18.39
30
28
726 Promotion   24 2103 28.18
12
8
13381 Manku Word   31 2117 47.15
13
15
3643 Traffic Network   89 2120 18.30
18
21
27307 Alternating Sequences   62 2127 32.62
8
9
16482 Make them equal !   22 2130 52.84
3
9
7430 Tower Of Hanoi - Revisited   13 2146 50.92
8
14
1846 Project File Dependencies   25 2150 41.10
14
15
13388 Easy Jug   24 2161 42.08
6
15
8551 Colours A, B, C, D   39 2165 21.23
10
21
11736 Prime Time   25 2167 48.59
11
12
7212 Find String Roots   39 2181 34.82
12
15
2815 Increasing Subsequences   53 2184 28.16
15
22
9637 Black and White   12 2184 54.19
4
5
12151 Pizzamania   28 2187 28.66
5
4
4556 Think I will Buy Me a Football Team   30 2189 45.16
7
11
22393 KATHTHI   58 2214 33.42
16
17
7190 Guess the Number   14 2238 33.38
4
9
867 Perfect Cubes   11 2243 47.88
7
5
1108 Card Trick   68 2247 50.40
21
24
364 Pocket Money   53 2248 38.59
15
18
1699 Numeral System   13 2248 67.37
6
3
11372 Blueberries   62 2251 33.64
12
13
6691 Picking Up Chicks   29 2262 32.15
11
18
9493 Advanced Fruits   93 2263 37.52
19
16
348 Expedition   58 2265 20.73
20
20
26 Build the Fence   37 2268 28.14
22
17

Most popular tags




© Spoj.com. All Rights Reserved. Spoj uses Sphere Engine™ © by Sphere Research Labs.