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1, Div. I have one suggestion though if you can change order of questions. 10937 UVA (4) //find '!' It also helps you to manage and track your programming comepetions training for you and your friends. Olena Drugalya - Oct 14. Thanks Again !! List of 100 beginner friendly questions on codeforces We hold weekly programming contests online. Recently , I learn Graphs . I may sound negative but there is no place for jerks like you who don't know how to praise good work and demotivate others from doing something. Helpful links: Website | Discussion | Challenges. Note: If you have some other tutorial links and nice problems, mention them. Thank you for the problems! The algorithm tutorials include short intuitive video tutorials, as well as links to a more in-depth text It helped me a lot in grasping very basic dp questions and tricks. Add this: https://www.youtube.com/watch?v=YBSt1jYwVfU and this: https://www.youtube.com/watch?v=1mtvm2ubHCY&t=72s if you haven't already. Those who have passed that set of solution tests, their authors can block Contests are quite rare, at least the main ones (AGC). Codeforces Problems Errichto 7 videos 13,263 views Last updated on Feb 3, 2020 Play all Share Loading... Save Sign in to YouTube Sign in Codeforces problem NEKO's Maze … Dynamic Programming Type (Codeforces Blog): http://codeforces.com/blog/entry/325? 10818 UVA (5) //Easy — but not-easy implementation: ++Dijkstra [LEX! 2 A problems. The problems here require a lot of thinking and trying before coming up to solutions. So I am not sure regarding order, you know better. Codeforces is a Russian website dedicated to competitive programming. Though there are many good problems in Codeforces, but if you want to practice to code We help companies accurately assess, interview, and hire top developers for a myriad of roles. Update: I write stuff Here in Bengali. I know this a repetitive 100-questions-of-codeforces Note : Some Solution Links are not Heyy, Thank You so much, I now believe that god exists. Another big pro of Codewars is that despite the name it's actually a very collaborative site. Where can I find solutions of second and third links since there are many less submissions of the problems ? Recently , I learn Graphs . So people can easily practice on a wider range of problem types instead of repeatedly solving stuff that they are already familiar with the whole time. Codeforces is a free online platform that offers regular coding contests. The round will not be rated for any participants since it is unofficial. I think you are generalizing everyone with your own BS experience. I am really happy and thankful as its best resource i have ever found on dp. We hold weekly programming contests online. (Quora): https://www.quora.com/How-can-I-be-perfect-in-dynamic-programming-How-should-I-practice/answer/Bohdan-Pryshchenko?ch=10&share=9a742611&srid=DDSy, SOS Dynamic Programming [Tutorial] (Codeforces Blog): http://codeforces.com/blog/entry/45223. You must make a blog of problems which you collected, and I must bookmark it :D It would be great. Hello Codeforces! Here is some list of Graph Problems. If there is odd number of negatives, then simply print the three lists, otherwise, move one Hi CodeForces ! They provide different modes of services like — participation in the short (2-hours) contests, challenge/hack other contestants solutions, ability to solve problems from previous contests for training purposes and many other. So please everyone that have a collection of Graphs Problems (DFS,BFS,LCA,Dijkestra,...) Share that with me. Virtual Judge currently supports the following online judges: URI Online Judge is a project developed for you! Managing state with React Context . Please share, i am new here. That was the only problem we were to solve and as a result, we were dead last in the rank-list! These are great (increasing order difficulty): https://codeforces.com/group/hK6hgc8x94/contest/222255, https://codeforces.com/group/hK6hgc8x94/contest/222261, https://codeforces.com/group/hK6hgc8x94/contest/238061. I probably have one or two basic DP tutorials too. There is another DP contest in atcoder but looks only Japanese statements. Contests are quite rare, at least the main ones (AGC). I found initial questions difficult as they involved combinatorics and number theory concepts. Helped me a lot.Thanks a lot. Programming competitions and contests, programming community The only programming contests Web 2.0 platform Array uses an integer value index to access a specific element. It gets you from knowing basic programming to being a yellow-red rated coder on Codeforces / CodeChef / TopCoder / etc. Under Construction ! Beginner Home / A Problems / brute force / Codeforces / dp / 189A Codeforces - Cut Ribbon. 1 + Div. → Pay attention Before contest Codeforces Round #672 (Div. Solve practice problems for Basics of Hash Tables to test your programming skills. Start from the basic level on these sites and once you build the confidence, get out of your comfort zone and gradually try to solve the complex problems. Which will take place this Wednesday at 14:35 UTC (The round is over now, but you can still participate virtually). AtCoder is a programming contest site for anyone from beginners to experts. He did at least try to help us. SlavicG and I are glad to invite you to Unofficial Div 4 Round #2. There are problems that you can solve online to practice, but there’s no online editor. [Beta] Harwest — Git wrap your submissions this Christmas! ®ãŒãªããªã£ã¦ãã‚‹ã®ã‹ãªã©æ°—になったので調べてみましたちなみにた … well actually I keep a few DP problems, here they are: http://codeforces.com/contest/729/problem/F 6, http://codeforces.com/contest/735/problem/E 9, http://codeforces.com/contest/731/problem/E 5, http://codeforces.com/contest/721/problem/E 7, http://codeforces.com/contest/742/problem/D 4, http://codeforces.com/contest/712/problem/D 5, http://codeforces.com/contest/743/problem/E 6, http://codeforces.com/contest/745/problem/E (7), http://codeforces.com/contest/747/problem/F (5), http://codeforces.com/contest/752/problem/E (5), http://codeforces.com/contest/703/problem/E (7), http://codeforces.com/contest/722/problem/E (9), http://codeforces.com/contest/760/problem/F (8), 11451 UVA (4) //C==20 mistake in statement, http://codeforces.com/contest/762/problem/D 5, 11081 UVA (4) //3 string subsequences (beware of fail), http://codeforces.com/contest/678/problem/E (5) //bitset dp + probability, http://codeforces.com/contest/766/problem/C (4), http://codeforces.com/contest/667/problem/C (3), http://www.spoj.com/problems/MOVIFAN/ (3), http://www.spoj.com/problems/ORDSUM23/ (3), http://www.spoj.com/problems/DIVSEQ/ (4) //N^3 (but better...) works fine, http://codeforces.com/contest/633/problem/F (7) //Tree dp, http://www.spoj.com/problems/ADJDUCKS/ (4) sort + pick 2-3 continous O(N), http://www.spoj.com/problems/JLNT/ (4) //pick 0 or 2 | 1e3*5e3, http://www.spoj.com/problems/TPCPALIN/ (5) //500^3 works (3rd countable), http://www.spoj.com/problems/COLORSEG/ (4) //50^4==OK 50^4log(N)=TLE NICE, http://www.spoj.com/problems/POWERCAR/ (3) //1e3*1e3*2 — follow rules, http://www.spoj.com/problems/INGRED/ (5) //TSP-like [reduce + go], http://www.spoj.com/problems/BADXOR/ (4) //classical subsets, http://www.spoj.com/problems/SPCO/ (5) //64*64*2 DP {OPT: prime O(1) + clear only half}, http://www.spoj.com/problems/WAYHOME/ (5) //NICE: 1) 1*1 b)12,1,**,2, http://www.spoj.com/problems/NFURY/ (2) //Minimal sum of squares, http://www.spoj.com/problems/GDIL/ (3) //combinatorics, http://codeforces.com/contest/791/problem/D (5) //Tree, http://codeforces.com/contest/791/problem/E (6) //V,K,X — pick any, http://codeforces.com/contest/789/problem/C (3), http://codeforces.com/contest/796/problem/E (6) //NICE: N*P*K*K (WC can't happen! ... CoderByte - A decent website with algorithm challenges from beginner to advanced levels. If you are a beginner, then its time to learn some fascinating stuff and solve very interesting problems. Click the description/title of the problem to view details and submit your answer. However what i find easy might be difficult for others. Beginners might get scared if the very first question drives them off. Right done dfs, http://codeforces.com/contest/802/problem/K (5) //Slightly DP-like (NICE) TREE, http://codeforces.com/contest/813/problem/C (3) //Simply 2 DFS: NICE + EASY, http://codeforces.com/contest/841/problem/D (4) //DFS while tracking "next", http://codeforces.com/contest/845/problem/G (5) //Keep track of cycles, http://codeforces.com/contest/844/problem/E (5) //Post-Order → line, Connect i → N-2: star, http://www.spoj.com/problems/CAC/ (5) //VERY NICE! Programming competitions and contests, programming community. Yes sadly there are just a few problems in each group. HackerEarth is a global hub of 3M+ developers. — DFS+DP [DAG with cycles], http://codeforces.com/contest/24/problem/A (2)//NICE [DFS-ON-CYCLE], http://codeforces.com/contest/29/problem/C (3) //Find begining/end of line (graph), http://codeforces.com/contest/29/problem/D (4) //Tree [implementation][simulation], http://codeforces.com/contest/716/problem/D 7, http://codeforces.com/contest/757/problem/F 7. Given a list of random strings and a string that is a scrambled version of a subset of those words, determine the words that were used to create that scrambled string. Muhammad Afifi): https://www.youtube.com/watch?v=TNgPT91sn90, Dynamic Programming (Prof. Mostafa Saad): https://www.youtube.com/playlist?list=PLPt2dINI2MIattDutu7IOAMlUuLeN8k2p, Dynamic Programming Practice (Solver To Be): https://www.youtube.com/playlist?list=PLPSFnlxEu99Gc6mSTVoYzPG77tnUW8znJ, ــــــــــــــــــــــــ, Dynamic Programming Practice (IDeserve): https://www.youtube.com/playlist?list=PLamzFoFxwoNjtJZoNNAlYQ_Ixmm2s-CGX, Dynamic Programming (Gaurav Sen): https://www.youtube.com/playlist?list=PLMCXHnjXnTnto1pZVvH7rbZ9W5neZ7Yhc, Dynamic Programming, Recursion, & Backtracking (Back To Back SWE): https://www.youtube.com/playlist?list=PLiQ766zSC5jM2OKVr8sooOuGgZkvnOCTI, Dynamic Programming (Tushar Roy): https://www.youtube.com/playlist?list=PLrmLmBdmIlpsHaNTPP_jHHDx_os9ItYXr, Dynamic Programming (Abdul Bari): https://www.youtube.com/playlist?list=PLJULIlvhz0rE83NKhnq7acXYIeA0o1dXb, Dynamic Programming (GeeksforGeeks): https://www.youtube.com/playlist?list=PLqM7alHXFySGbXhWx7sBJEwY2DnhDjmxm, Dynamic Programming: From Zero To Hero (Rachit Jain): https://www.youtube.com/playlist?list=PLfBJlB6T2eOtMXgK3FLUTawHjzpIEySHF, Dynamic Programming (MIT Open Course): https://www.youtube.com/playlist?list=PLZDUDpMlJOnzqEo45zDQjuZqv2PGRNHI1, Dynamic Programming — AtCoder educational dp contest (Errichto): https://www.youtube.com/watch?v=FAQxdm0bTaw, Dynamic Programming Tutorials (VPlanet): https://www.youtube.com/channel/UCdNNY8Y8meG3z9Wy6MTzcLg/videos, Episode 19 — Knapsack (Algorithms Live! Programming competitions and contests, programming community Ahnaf.Shahriar.Asif I went through it from beginning. A curated list of awesome places to learn and/or practice algorithms. Hello Codeforces! Bioinformatics Stronghold Python Village Bioinformatics Stronghold Bioinformatics Armory Bioinformatics Textbook Track Algorithmic Heights Rosalind is a platform for learning bioinformatics and programming through problem solving. :), https://www.hackerrank.com/challenges/kingdom-division/problem add this to dp and tree problems please. be rated for any participants since it is unofficial. *has extra registration The more you get experienced, the more you'll learn the importance of sorting things for practicing. Dismiss Join GitHub today GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. Dynamic Programming Problems and solutions (VPlanet): https://vplanetcoding.com/course2#698A, Dynamic Programming Problems Collection (Codeforces Blog): https://codeforces.com/blog/entry/20284, How can I be perfect in dynamic programming? http://www.spoj.com/problems/LKS/ (3) //Classical knapsack, http://www.spoj.com/problems/UOFTAE/ (3) //Easy & Sympatic DP, http://www.spoj.com/problems/DCOWS/ (4) //Very NICE (sort + GO), http://www.spoj.com/problems/FARIDA/ (3) //Easy & Sympatic ((u+1) | Price+(u+2)), http://www.spoj.com/problems/AU7_5/ (2) //EASY: dyn(n-1)+dyn(n-k-1), http://www.spoj.com/problems/NAIVELOK/ (4) //NICE [depalindromisation], http://codeforces.com/contest/846/problem/C (4) //With print, http://www.spoj.com/problems/CNT_LUCK/ (4) //Number (binary) dp [NICE] {ull care 0-1}, http://www.spoj.com/problems/MAY99_4/ (3) //Almost combinatoric Sub and 0/1,1/0, http://www.spoj.com/problems/GEEKOUNT/ (4) //Number dp, http://www.spoj.com/problems/MUTDNA/ (4) // N*2 (turned?) I started competitive coding in my first year of college following my interest of solving logical problems and it gradually became one my core interests. Recently I added a new feature in A2 Online Judge, it's called Practice Ladders.A practice ladder is just a list of problems, and you can add some dependencies between the problem (for example, you must solve problem X before being able to see problem Y). https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go So far one of the best tutorials for basic dp problems. https://www.hackerearth.com/practice/basic-programming/implementation/basics-of-implementation/practice-problems/algorithm/bob-and-subset-23f0729c/, https://www.hackerearth.com/challenge/competitive/september-circuits-17/algorithm/coin-game-3-1762eeeb/, https://www.hackerearth.com/challenge/competitive/january-circuits-18/algorithm/road-1-63e2e618/, https://www.hackerrank.com/contests/w36/challenges/a-race-against-time, https://agc015.contest.atcoder.jp/tasks/agc015_c, https://codeforces.com/contest/983/problem/B, https://codeforces.com/contest/988/problem/F, https://www.hackerrank.com/challenges/equal/problem. Thank you so much, I'm so grateful to see that.~, This one helps me to understand how you can form a DP solution easily. And I'd like to see a list of all problems with upsolved ones being marked green or sth. Hmm interesting Idea :) I'll think about it. CodeChef was created as a platform to help programmers make it big in the world of algorithms, computer programming, and programming contests.At CodeChef we work hard to revive the geek in you by hosting a programming contest at the start of the month and two smaller programming challenges at the middle and end of the month. Today I've listed some DP tutorials and problems. and Now I want to solve Problems in CF about graphs. 13172 UVA (5) //6*DJ per query + permutations, 10816 UVA (4) //Easy Linear-Search by answer + DJ with path, http://codeforces.com/contest/827/problem/F 7 //Very nice — Even&Odd, http://www.spoj.com/problems/DELIVER/ (5) //Normalize coordinates + Optimalize, http://www.spoj.com/problems/CCHESS/ (4) //Dijkstra as knight, http://codeforces.com/contest/723/problem/F 7, http://codeforces.com/contest/687/problem/D 6, http://codeforces.com/contest/680/problem/E 7 //+precalculation/brute force, http://codeforces.com/contest/766/problem/D 5, http://www.spoj.com/problems/LEXSTR/ (3) //Nice na stringu, http://codeforces.com/contest/805/problem/C 3 //NICE (dijkstra like :P), http://www.spoj.com/problems/IITKWPCI/ (3) //VERY NICE, http://www.spoj.com/problems/FRNDCIRC (3) //Classical DSU (NICE for practice), http://www.spoj.com/problems/FOXLINGS/ (3) Easy — just renumbering, http://www.spoj.com/problems/NITTROAD/ (4) //Process from back, http://www.spoj.com/problems/SHAHBG/ (2) //DSU not needes (simulated by array), http://codeforces.com/contest/598/problem/D (3) //Can be solved with DFS too, http://codeforces.com/contest/9/problem/E (4) //Making one big cycle, http://codeforces.com/contest/25/problem/D (4) //Could be done linear too, http://codeforces.com/contest/28/problem/B (4) //NICE [imho bad statement], http://codeforces.com/contest/789/problem/D //Adj EG + Self/everything, http://codeforces.com/contest/21/problem/D (5) //[NICE][EulerTour+DP], http://codeforces.com/contest/36/problem/E (6) //VERY NICE [4odd is hardest], http://www.spoj.com/problems/FASTFLOW/en/ //Raw (no sauce), 4322 — Destroying the bus stations (Live Archive), 11380 — Down Went The Titanic (UVA) //Interesting grid problem, 6395 — Surely You Congest (LA) //VERY NICE [slightly advanced], http://codeforces.com/gym/100963 (Flame of Nucleus — F), 11167 — Monkeys in the Emei Mountain //Also harder (imho), http://codeforces.com/problemset/problem/808/F (+BS), http://codeforces.com/problemset/problem/653/D (+BS), https://www.deadline24.pl/assets/problemsets/dl24.elim.2017.B.en.pdf (DEADLINE 24 problem — not sure if it can be submited :O), http://codeforces.com/problemset/problem/847/J //Not sure if matching is right solutions but it works [also very near to matching], http://codeforces.com/problemset/problem/727/D, http://codeforces.com/problemset/problem/704/D [Also advanced], 4957 — Fake scoreboard (LA) //If I remember well, other solutions was also possible, 1155 — Power Transmission (LOJ) //(classical), https://www.codechef.com/problems/ROBOTDAG //Ford-Fukherson, 11506 — Angry Programmer (UVA) //Nodes division, 10092 — The Problem with the Problem Setter, Problem B. Roller Coaster Scheduling (GCJ — 2017), 5905 — Pool construction (LA) //Imho harder, 13211 UVA (5) //NICE — FW adding states, http://www.spoj.com/problems/ROHAAN/ (3) //Classical, http://codeforces.com/contest/25/problem/C (4) //Adding new edges .. need FW principal, http://codeforces.com/contest/33/problem/B (3) //NICE [dijkstra could work too], http://codeforces.com/contest/27/problem/D (5), http://www.spoj.com/problems/VFRIEND2/ (5) //Graph possible check, http://codeforces.com/contest/859/problem/E (4) //VERY NICE (2 cases: CYCLE [x2] / TREE [x(Size+1)], http://codeforces.com/contest/847/problem/C (2) //Forest making Easy&Nice, http://codeforces.com/contest/863/problem/C (3) //Cycle in states, http://www.spoj.com/problems/DSUBTREE/ (5) //Isomorphism on trees (try all subsets), http://www.spoj.com/problems/TREEISO/ (4) //Simple isomorphism of trees, http://www.spoj.com/problems/MATCHING/ //Raw (no sauce), 10080 — Gopher II (UVA) //Easy — sympathic, http://codeforces.com/gym/101485 (Elementary Math — E) //Very nice principal [not that hard], http://codeforces.com/gym/100820 (Airport — A) //Nice one, http://codeforces.com/gym/100753 (Bounty Hunterr II — B) //VERY NICE — I refered multiple times to this principal, http://codeforces.com/gym/101408 (Cat vs Dog — C), 1171 — Knights in Chessboard (II) (LOJ) //Classical chess, http://www.spoj.com/problems/SCPC11H/ //Very nice — yet not hard, http://codeforces.com/gym/101047/problem/H, http://codeforces.com/problemset/problem/659/E, https://www.codechef.com/problems/CHEFYODA //Imho matching is not the crucial part here, http://codeforces.com/problemset/problem/831/D, http://codeforces.com/gym/100800 (Aqueduct Construction — A), http://www.spoj.com/problems/BNMT/ //Solved with MCMF yet I remember I thought normal flows would work too, http://codeforces.com/problemset/problem/818/G, http://codeforces.com/problemset/problem/802/C, http://codeforces.com/contest/863/problem/F (5) //VERY NICE, http://www.spoj.com/problems/COT/ (7) //ON TREE [but very tight TLE], http://www.spoj.com/problems/GOT/ (5) //ON TREE, http://www.spoj.com/problems/TFRIENDS/ (4) //just scc size, http://www.spoj.com/problems/CAPCITY/ (4) //scc destination [WEAK TC], http://codeforces.com/contest/22/problem/E (5) //[NICE][make it strongly connected][SRC>DST], 11183 UVA (4) //Directed [need to know algo! Help needed from participants with rating up to 1500, Help me to find out the right approach of this code, The 'science' of training in competitive programming, http://codeforces.com/contest/653/problem/E, http://codeforces.com/contest/769/problem/C, http://codeforces.com/contest/796/problem/D, http://codeforces.com/contest/821/problem/D, http://codeforces.com/contest/35/problem/C, http://codeforces.com/contest/732/problem/F, http://codeforces.com/contest/700/problem/C, http://codeforces.com/contest/715/problem/C, http://codeforces.com/contest/741/problem/D, http://codeforces.com/contest/752/problem/F, http://codeforces.com/contest/766/problem/E, http://codeforces.com/contest/833/problem/D, http://codeforces.com/contest/734/problem/E, http://codeforces.com/contest/727/problem/A, http://codeforces.com/contest/723/problem/E, http://codeforces.com/contest/709/problem/E, http://codeforces.com/contest/710/problem/E, http://codeforces.com/contest/758/problem/E, http://codeforces.com/contest/760/problem/B, http://codeforces.com/contest/761/problem/E, http://codeforces.com/contest/638/problem/B, http://codeforces.com/contest/638/problem/C, http://codeforces.com/contest/638/problem/D, http://codeforces.com/contest/767/problem/C, http://codeforces.com/contest/781/problem/C, http://codeforces.com/contest/794/problem/D, http://codeforces.com/contest/802/problem/K, http://codeforces.com/contest/813/problem/C, http://codeforces.com/contest/841/problem/D, http://codeforces.com/contest/845/problem/G, http://codeforces.com/contest/844/problem/E, http://codeforces.com/contest/849/problem/C, http://codeforces.com/contest/846/problem/E, http://codeforces.com/contest/861/problem/F, http://codeforces.com/contest/24/problem/A, http://codeforces.com/contest/29/problem/C, http://codeforces.com/contest/29/problem/D, http://codeforces.com/contest/716/problem/D, http://codeforces.com/contest/757/problem/F, http://codeforces.com/contest/827/problem/F, http://codeforces.com/contest/723/problem/F, http://codeforces.com/contest/687/problem/D, http://codeforces.com/contest/680/problem/E, http://codeforces.com/contest/766/problem/D, http://codeforces.com/contest/805/problem/C, http://codeforces.com/contest/598/problem/D, http://codeforces.com/contest/9/problem/E, http://codeforces.com/contest/25/problem/D, http://codeforces.com/contest/28/problem/B, http://codeforces.com/contest/789/problem/D, http://codeforces.com/contest/21/problem/D, http://codeforces.com/contest/36/problem/E, http://www.spoj.com/problems/FASTFLOW/en/, http://codeforces.com/problemset/problem/808/F, http://codeforces.com/problemset/problem/653/D, https://www.deadline24.pl/assets/problemsets/dl24.elim.2017.B.en.pdf, http://codeforces.com/problemset/problem/847/J, http://codeforces.com/problemset/problem/704/D, https://www.codechef.com/problems/ROBOTDAG, http://codeforces.com/contest/25/problem/C, http://codeforces.com/contest/33/problem/B, http://codeforces.com/contest/27/problem/D, http://codeforces.com/contest/859/problem/E, http://codeforces.com/contest/847/problem/C, http://codeforces.com/contest/863/problem/C, https://www.codechef.com/problems/CHEFYODA, http://codeforces.com/contest/863/problem/F, http://codeforces.com/contest/22/problem/E, http://codeforces.com/contest/17/problem/B, http://codeforces.com/contest/765/problem/E, http://codeforces.com/contest/770/problem/C, http://codeforces.com/contest/825/problem/E, http://codeforces.com/contest/746/problem/G, http://codeforces.com/contest/750/problem/F, http://codeforces.com/contest/796/problem/C, http://codeforces.com/contest/797/problem/D, http://codeforces.com/contest/805/problem/E, http://codeforces.com/contest/828/problem/D, http://codeforces.com/contest/34/problem/D, http://codeforces.com/problemset/problem/23/E, http://codeforces.com/problemset/problem/14/D, http://codeforces.com/contest/868/problem/E, http://codeforces.com/contest/776/problem/D, http://codeforces.com/contest/733/problem/F, http://codeforces.com/contest/828/problem/F, http://codeforces.com/contest/832/problem/D, http://codeforces.com/problemset/problem/838/B, http://codeforces.com/contest/855/problem/D, http://codeforces.com/contest/729/problem/F, http://codeforces.com/contest/735/problem/E, http://codeforces.com/contest/731/problem/E, http://codeforces.com/contest/721/problem/E, http://codeforces.com/contest/742/problem/D, http://codeforces.com/contest/712/problem/D, http://codeforces.com/contest/743/problem/E, http://codeforces.com/contest/745/problem/E, http://codeforces.com/contest/747/problem/F, http://codeforces.com/contest/752/problem/E, http://codeforces.com/contest/703/problem/E, http://codeforces.com/contest/722/problem/E, http://codeforces.com/contest/760/problem/F, http://codeforces.com/contest/762/problem/D, http://codeforces.com/contest/678/problem/E, http://codeforces.com/contest/766/problem/C, http://codeforces.com/contest/667/problem/C, http://codeforces.com/contest/633/problem/F, http://codeforces.com/contest/791/problem/D, http://codeforces.com/contest/791/problem/E, http://codeforces.com/contest/789/problem/C, http://codeforces.com/contest/796/problem/E, http://codeforces.com/contest/797/problem/E, http://codeforces.com/contest/793/problem/D, http://codeforces.com/contest/803/problem/E, http://codeforces.com/contest/805/problem/F, http://codeforces.com/contest/808/problem/E, http://codeforces.com/contest/811/problem/C, http://codeforces.com/contest/812/problem/B, http://codeforces.com/contest/813/problem/D, http://codeforces.com/contest/814/problem/E, http://codeforces.com/problemset/problem/816/E, http://codeforces.com/contest/837/problem/D, http://codeforces.com/contest/846/problem/C, http://codeforces.com/contest/859/problem/C, http://codeforces.com/contest/859/problem/D, http://codeforces.com/contest/855/problem/B, http://codeforces.com/contest/855/problem/C, http://codeforces.com/contest/855/problem/E, http://codeforces.com/contest/864/problem/E, http://codeforces.com/contest/598/problem/E, http://codeforces.com/problemset/problem/16/E, http://codeforces.com/problemset/problem/18/E, http://codeforces.com/contest/2/problem/B, http://codeforces.com/contest/4/problem/D, http://codeforces.com/contest/6/problem/D, http://codeforces.com/contest/321/problem/E, http://codeforces.com/contest/868/problem/F, http://codeforces.com/contest/8/problem/C, http://codeforces.com/contest/10/problem/D, http://codeforces.com/contest/13/problem/C, http://codeforces.com/contest/17/problem/C, http://codeforces.com/contest/19/problem/B, http://codeforces.com/contest/30/problem/C, http://codeforces.com/contest/31/problem/E, http://codeforces.com/contest/41/problem/D. :). :), https://atcoder.jp/contests/dp Here is a link of a contest consisting of basic DP problems, I think this is really helpful for beginners. These are classified into various problem types and categories. Problems. If you are a beginner and want to prepare for IOI or ACM ICPC, this is an ideal place for you. This blog would cover all the basic algorithms and data structures to build a great foundation for such prestigious competitions. My Review about Scaler academy. Codeforces. Codeforces Round 692 (Div. http://www.spoj.com/problems/ACPC10D/ (3) //NICE — DAG traversal, http://www.spoj.com/problems/CPCRC1C/ (4) //Digits dp (return pair), http://www.spoj.com/problems/BORW/ (3) //Inc+Dec sequence (small array), http://codeforces.com/problemset/problem/16/E (5) //Bitmask [NICE], http://codeforces.com/problemset/problem/18/E (5) //VERY NICE {no need for second iteration}, http://codeforces.com/contest/2/problem/B (5) //NICE — 2/5 are in-fact independent, http://codeforces.com/contest/4/problem/D (3) //Classical [FW works too] XY > xy, http://codeforces.com/contest/6/problem/D (4) //NICE (N^4), http://codeforces.com/contest/321/problem/E (7) //VERY NICE — D&C Trick, http://codeforces.com/contest/868/problem/F (8) //VERY VERY NICE D&C Trick — With MO Principal, http://codeforces.com/contest/8/problem/C (5) //NICE — Masks [N*2^N], http://codeforces.com/contest/10/problem/D (4) //LCIS [NICE], http://codeforces.com/contest/13/problem/C (5) //NICE [sorting][only elements from array], http://codeforces.com/contest/17/problem/C (5) //[NICE][iterative-sparse][+idea], http://codeforces.com/contest/19/problem/B (4) //Knapsack (after good look), http://codeforces.com/contest/30/problem/C (4) //Probabilities + (slight)GEO, http://codeforces.com/contest/31/problem/E (4) //[NICE], http://codeforces.com/contest/41/problem/D (4) //With printing, Good morning sir. 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