Leetcode problem: https://leetcode.com/problems/subarray-sum-equals-k/ You might find these following videos helpful :-) Introduction to Java playlist: https://goo.gl/3Bw2FU C/C++ Programming :: https://goo.gl/99s2tV Data Structure in C/C++ Playlist: https://goo.gl/CSK1Iq CSS : https://goo.gl/LYzYBC C++ STL: https://goo.gl/s1Jdwp #CompetitiveProgramming #Ad_hoc #CodeForces #Algorithm

When I was describing the first 2d approach, dp[i][j] denotes if I can take some elements from the first 'i' elements in the array can I create the sum 'j'. dp[i-1][j] denotes if I take the first 'i' elements from the array **excluding the i-th element** can I form the sum 'j'. You might find these following videos helpful :-) Introduction to Java playlist: https://goo.gl/3Bw2FU C/C++ Programming :: https://goo.gl/99s2tV Data Structure in C/C++ Playlist: https://goo.gl/CSK1Iq CSS : https://goo.gl/LYzYBC C++ STL: https://goo.gl/s1Jdwp Timecodes 0:00 Subset-sum/Coin change 11:49 Using 1D matrix 23:07 Number of ways to form a sum 28:16 Minimum/Maximum number of numbers to create sum #CompetitiveProgramming #Ad_hoc #CodeForces #Algorithm

You might find these following videos helpful :-) Introduction to Java playlist: https://goo.gl/3Bw2FU C/C++ Programming :: https://goo.gl/99s2tV Data Structure in C/C++ Playlist: https://goo.gl/CSK1Iq CSS : https://goo.gl/LYzYBC C++ STL: https://goo.gl/s1Jdwp #CompetitiveProgramming #Ad_hoc #CodeForces #Algorithm

You might find these following videos helpful :-) Introduction to Java playlist: https://goo.gl/3Bw2FU C/C++ Programming :: https://goo.gl/99s2tV Data Structure in C/C++ Playlist: https://goo.gl/CSK1Iq CSS : https://goo.gl/LYzYBC C++ STL: https://goo.gl/s1Jdwp #CompetitiveProgramming #Ad_hoc #CodeForces #Algorithm

You might find these following videos helpful :-) Introduction to Java playlist: https://goo.gl/3Bw2FU C/C++ Programming :: https://goo.gl/99s2tV Data Structure in C/C++ Playlist: https://goo.gl/CSK1Iq CSS : https://goo.gl/LYzYBC C++ STL: https://goo.gl/s1Jdwp #CompetitiveProgramming #Ad_hoc #CodeForces #Algorithm

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If you enjoyed watching this video, make sure to leave a like/comment. :) Articles/Videos Links: 1. First, You should learn this from here: http://adilet.org/blog/sparse-table/ 2. Next you can see the বাংলা ব্লগঃ https://tanvir002700.wordpress.com/2015/05/27/sparse-table/ 3. Now you will understand what they tried to say in their writings, see the below blogs: https://discuss.codechef.com/t/tutorial-disjoint-sparse-table/17404 https://www.hackerearth.com/practice/notes/sparse-table/ https://www.geeksforgeeks.org/sparse-table/ https://www.topcoder.com/community/competitive-programming/tutorials/range-minimum-query-and-lowest-common-ancestor/ https://tutorialspoint.dev/data-structure/arrays/sparse-table 4. Watch this video: https://www.youtube.com/watch?v=c5O7E_PDO4U 5. Nice Description and Problem List: https://cp-algorithms.com/data_structures/sparse-table.html

Source Code: https://gist.github.com/dipta10/72cc6c5577b339c0ae36bbb13453aece You might find these following videos helpful :-) Introduction to Java playlist: https://goo.gl/3Bw2FU C/C++ Programming :: https://goo.gl/99s2tV Data Structure in C/C++ Playlist: https://goo.gl/CSK1Iq CSS : https://goo.gl/LYzYBC C++ STL: https://goo.gl/s1Jdwp #CompetitiveProgramming #Algorithm

/* * Created by Dipta Das on 30-11-2018 * Title: 1082B - Vova and Trophies * Problem Link: https://codeforces.com/contest/1082/problem/B * Editorial and Source Code: https://codeforces.com/blog/entry/63544 */ You might find these following videos helpful :-) Introduction to Java playlist: https://goo.gl/3Bw2FU C/C++ Programming :: https://goo.gl/99s2tV Android Development: https://goo.gl/oRcdDq Data Structure in C/C++ Playlist: https://goo.gl/CSK1Iq CSS : https://goo.gl/LYzYBC Java Swing Playlist: https://goo.gl/O4iaAV Java Multithreading: https://goo.gl/5mXDYN C++ STL: https://goo.gl/s1Jdwp #CompetitiveProgramming #Ad_hoc #Codeforces #Algorithm

/* * Created by Dipta Das on 23-11-2018 * Title: Binary Indexed Tree/Fenwich Tree * Editorial * https://www.topcoder.com/community/competitive-programming/tutorials/binary-indexed-trees/ * http://www.shafaetsplanet.com/?p=1961&fbclid=IwAR23aI879JfPHbIaW3y93Du6Ql_68DCTxcUY6euLJUWsLvgtvj_-b2tKJCE * https://www.geeksforgeeks.org/binary-indexed-tree-or-fenwick-tree-2/ * https://www.youtube.com/playlist?list=PLDV1Zeh2NRsCvoyP-bztk6uXAYoyZg_U9 * https://www.hackerearth.com/practice/notes/binary-indexed-tree-or-fenwick-tree/ * Source Code: https://gist.github.com/dipta10/8bdc77376027ed3d5b81e90436a8d5bd */ You might find these following videos helpful :-) Introduction to Java playlist: https://goo.gl/3Bw2FU C/C++ Programming :: https://goo.gl/99s2tV Android Development: https://goo.gl/oRcdDq Data Structure in C/C++ Playlist: https://goo.gl/CSK1Iq CSS : https://goo.gl/LYzYBC Java Swing Playlist: https://goo.gl/O4iaAV Java Multithreading: https://goo.gl/5mXDYN C++ STL: https://goo.gl/s1Jdwp #CompetitiveProgramming #Algorithm

/* * Title: B. Views Matter * Problem Link: https://codeforces.com/contest/1061/problem/B * Editorial: https://codeforces.com/blog/entry/63384 * Source Code: https://gist.github.com/dipta10/360fc009573104eea4371ce7a5d6f177 */ You might find these following videos helpful :-) Introduction to Java playlist: https://goo.gl/3Bw2FU C/C++ Programming :: https://goo.gl/99s2tV Android Development: https://goo.gl/oRcdDq Data Structure in C/C++ Playlist: https://goo.gl/CSK1Iq CSS : https://goo.gl/LYzYBC Java Swing Playlist: https://goo.gl/O4iaAV Java Multithreading: https://goo.gl/5mXDYN C++ STL: https://goo.gl/s1Jdwp #CompetitiveProgramming #Ad_hoc #Codeforces

/* * Created by Dipta Das on 23-11-2018 * Title: Segment Tree Lazy Propagation * article by Shafayet Bhai: http://www.shafaetsplanet.com/planetcoding/?p=1591, http://www.shafaetsplanet.com/?p=1557 * Solution: https://gist.github.com/dipta10/ac694515d7370ce3ae56754a8a3f119e */ You might find these following videos helpful :-) Introduction to Java playlist: https://goo.gl/3Bw2FU C/C++ Programming :: https://goo.gl/99s2tV Android Development: https://goo.gl/oRcdDq Data Structure in C/C++ Playlist: https://goo.gl/CSK1Iq CSS : https://goo.gl/LYzYBC Java Swing Playlist: https://goo.gl/O4iaAV Java Multithreading: https://goo.gl/5mXDYN C++ STL: https://goo.gl/s1Jdwp #CompetitiveProgramming #Algorithm

Reference: http://www.shafaetsplanet.com/?p=1557 You might find these following videos helpful :-) Introduction to Java playlist: https://goo.gl/3Bw2FU C/C++ Programming :: https://goo.gl/99s2tV Android Development: https://goo.gl/oRcdDq Data Structure in C/C++ Playlist: https://goo.gl/CSK1Iq CSS : https://goo.gl/LYzYBC Java Swing Playlist: https://goo.gl/O4iaAV Java Multithreading: https://goo.gl/5mXDYN C++ STL: https://goo.gl/s1Jdwp #CompetitiveProgramming #Algorithm

Reference: http://www.shafaetsplanet.com/?p=1557 You might find these following videos helpful :-) Introduction to Java playlist: https://goo.gl/3Bw2FU C/C++ Programming :: https://goo.gl/99s2tV Android Development: https://goo.gl/oRcdDq Data Structure in C/C++ Playlist: https://goo.gl/CSK1Iq CSS : https://goo.gl/LYzYBC Java Swing Playlist: https://goo.gl/O4iaAV Java Multithreading: https://goo.gl/5mXDYN C++ STL: https://goo.gl/s1Jdwp #CompetitiveProgramming #Algorithm

// Problem link: http://codeforces.com/contest/1016/problem/A // Solution link: https://gist.github.com/dipta10/aae2a8e8d1743911f1075ab9f9568165/ You might find these following videos helpful :-) Introduction to Java playlist: https://goo.gl/3Bw2FU C/C++ Programming :: https://goo.gl/99s2tV Android Development: https://goo.gl/oRcdDq Data Structure in C/C++ Playlist: https://goo.gl/CSK1Iq CSS : https://goo.gl/LYzYBC Java Swing Playlist: https://goo.gl/O4iaAV Java Multithreading: https://goo.gl/5mXDYN C++ STL: https://goo.gl/s1Jdwp