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Binary Indexed Tree problems
Problem Name Online Judge Year Contest Difficulty Level
1 D-query Categories SPOJ 1
2 K-query Categories SPOJ 1
3 Gravel Categories CodeChef 1
4 Japan Categories SPOJ 1
5 Horrible Queries Categories SPOJ 1
6 Card Trick Categories SPOJ 1
7 The day of the competitors Categories SPOJ 1
8 Matrix Summation Categories SPOJ 1
9 Inversion Count Categories SPOJ 1
10 Bingo! Categories Live Archive 2010 Latin America 1
11 Order statistic set Categories SPOJ 1
12 Increasing Subsequences Categories SPOJ 1
13 Yodaness Level Categories SPOJ 1
14 Number of Ways Categories Codeforces Codeforces Round #266 (Div. 2) 1
15 Jupiter Atacks! Categories Live Archive 2011 Latin America 1
16 Coder Ratings Categories SPOJ 1
17 Interval Product Categories Live Archive 2012 Latin America 1
18 Update the array ! Categories SPOJ 1
19 Assistance Required Categories SPOJ 1
20 Ordering the Soldiers Categories SPOJ 1
21 Little Girl and Maximum Sum Categories Codeforces Codeforces Round #169 (Div. 2) 1
22 Can you answer these queries IV Categories SPOJ 1
23 Karen and Coffee Categories Codeforces Codeforces Round #419 (Div. 2) 2
24 IOI01 Mobiles Categories SPOJ 2
25 Cvjetici Categories SPOJ 2
26 Interval Product Categories UVA 2
27 Fenwick Trees Categories SPOJ 2
28 Thor Categories Codeforces Codeforces Round #366 (Div. 1) & Codeforces Round #366 (Div. 2) 2
29 Meteors Categories SPOJ 2
30 Counting inversions Categories SPOJ 2
31 Greg and Array Categories Codeforces Codeforces Round #179 (Div. 1) & Codeforces Round #179 (Div. 2) 2
32 WIND VANE Categories SPOJ 2
33 Matrix Categories SPOJ 2
34 Round-Robin Scheduling Categories SPOJ 2
35 Chaos Strings Categories SPOJ 2
36 Distinct Increasing Subsequences Categories SPOJ 2
37 Potentiometers Categories UVA 2
38 Pashmak and Parmida's problem Categories Codeforces Codeforces Round #261 (Div. 2) 3
39 Salary Management Categories SPOJ 3
40 Census Categories UVA 3
41 Chef and Swaps Categories CodeChef 3
42 Ping pong Categories UVA 3
43 Calculate The Cost Categories SPOJ 3
44 UFOs Categories Timus 3
45 New bricks disorder Categories SPOJ 3
46 Team Selection Categories SPOJ 3
47 Queue (Pro) Categories SPOJ 3
48 Above the Median Categories SPOJ Vietnam 3
49 Movie collection Categories UVA 4
50 Propagating tree Categories Codeforces Codeforces Round #225 (Div. 1) & Codeforces Round #225 (Div. 2) 4
51 Cow Photographs Categories SPOJ 4
52 Counting pairs Categories SPOJ 4
53 ``Dynamic'' Inversion Categories UVA 5
54 Pillars Categories Codeforces Codeforces Round #271 (Div. 2) 5
55 PolandBall and Polygon Categories Codeforces 8VC Venture Cup 2017 - Elimination Round 5
56 Jupiter Atacks! Categories UVA 5
57 Tufurama Categories Codeforces Educational Codeforces Round 41 (Rated for Div. 2) 5
58 Balé Categories SPOJ Brazil 5
59 Mishka and Interesting sum Categories Codeforces Codeforces Round #365 (Div. 2) 5
60 Valera and Queries Categories Codeforces Codeforces Round #216 (Div. 2) 6
61 Infinite Inversions Categories Codeforces Codeforces Round #301 (Div. 2) 6
62 FloatingMedian Categories TopCoder SRM 310 - Div1 medium - Div2 hard] (9990) 6
63 Sereja and Arcs Categories CodeChef 6
64 George and Cards Categories Codeforces Codeforces Round #227 (Div. 2) 7
65 Dog Show Categories Codeforces 2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest, qualification stage (Online Mirror, ACM-ICPC Rules, Teams Preferred) 7
66 Ambitious Experiment Categories Timus 7
67 Count The Indexes 2 Categories SPOJ 7
68 Radio stations Categories Codeforces Educational Codeforces Round 17 8
69 Júpiter Ataca! Categories SPOJ Brazil 8