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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
12914 Totient Extreme   45 1805 40.25
8
12
96 Shopping   46 3100 44.19
15
11
12183 Help the Commander in Chief   46 916 29.10
15
16
15259 Large Knapsack   46 2294 26.12
17
17
15783 Coder Express 3!!   46 1276 47.77
9
10
26193 Lost and survived   46 847 35.48
16
12
3408 DNA Sequences   47 1992 26.14
16
20
18425 Polynomial Multiplication   47 1754 39.40
19
22
101 Fishmonger   48 2318 38.19
17
21
4110 Fast Maximum Flow   48 3063 34.32
25
22
6470 Finding the Kth Prime   48 7872 27.23
19
14
8217 XOR Maximization   48 1757 23.18
17
28
8980 Cost   48 1266 29.15
18
26
9126 Time to live   48 2058 37.70
12
15
11063 AP - Complete The Series (Easy)   48 13032 37.13
3
6
31 Fast Multiplication   49 9044 20.71
15
12
372 The Benefactor   49 3099 35.38
12
13
1786 In Danger   49 4396 53.61
7
13
381 106 miles to Chicago   50 3222 36.51
15
14
1799 The Bottom of a Graph   50 1736 32.48
21
21
16909 Critical Edges   50 1926 28.75
13
15
17725 Bad XOR   50 1052 23.85
16
22
5832 AND Rounds   51 1702 24.89
17
20
8756 Shake Shake Shaky   51 2457 23.88
12
14
1703 ACM (ACronymMaker)   52 1098 29.71
26
21
2916 Can you answer these queries V   52 2893 26.71
23
24
8785 Cut the Silver Bar   52 5382 54.42
5
16
13769 Roommate Agreement   52 1493 31.45
11
16
15436 Slick   52 2272 32.78
9
9
27 Sorting Bank Accounts   53 8979 40.34
11
6
364 Pocket Money   53 2248 38.59
15
18
1029 Matrix Summation   53 3561 20.15
15
18
2815 Increasing Subsequences   53 2184 28.16
15
22
7974 What’s Next   53 52275 35.44
2
2
11354 Amusing numbers   53 3254 59.78
13
15
12448 How Many Games?   53 3759 22.36
14
12
30 Bytelandian Blingors Network   54 3791 39.26
14
10
212 Water among Cubes   54 1615 26.43
25
27
2148 Candy III   54 20571 25.32
9
5
28307 Ada and Game   54 630 31.58
14
19
28308 Ada and Spring Cleaning   54 1608 20.76
18
17
1418 The Cats and the Mouse   55 3001 33.76
10
12
3883 LATGACH3   55 3205 56.47
10
20
4452 Simple Arithmetics II   55 7514 42.29
11
5
4564 Chop Ahoy! Revisited!   55 2968 50.84
12
14
11840 Sum of Squares with Segment Tree   55 2087 51.04
23
19
17247 Digit Sum   55 3895 37.90
18
22
10810 Its a Murder!   56 2405 22.17
16
16
263 Period   57 3064 40.09
12
17
902 Hangover   57 17908 62.79
3
3

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