Delete a Segment. Tags Algorithm wise problem All online judge Problem BFS BInary Search Codeforces Codemarshal Common question Coodechef DFS Dijkstra Euler’s Totient Function Graph Hackerearth HackerRank interactive Light OJ Math Number Theory Prime number related SPOJ Strongly Connected Components TopH TopologicalSort UVA :(. By the way, your problems on spoj are very nice, thanks for them. While you’re permuting, some problems are revisited. source. 3400. x33. Algorithm 1; Blog 2; Competitive Programming 26. Tags Algorithm wise problem All online judge Problem BFS BInary Search Codeforces Codemarshal Common question Coodechef DFS Dijkstra Euler’s Totient Function Graph Hackerearth HackerRank interactive Light OJ Math Number Theory Prime number related SPOJ Strongly Connected Components TopH TopologicalSort UVA 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?) Is there a "SKILL TREE" for competitive programming? 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. Categories. We strongly recommend to minimize your browser and try this yourself first. In normal BFS of a graph all edges have equal weight but in 0-1 BFS some edges may have 0 weight and some may have 1 weight. Tag: codeforces solution 721A. I noticed that almost all of them started from blue and didn't participate much before they become red. We store each user's Codeforces informations in our database in order to quickly load the content of a handle. I think most answers assume you are at a level to practice recursion in context of ADTs and complicated algorithms. September 1, 2012 by MSiddeek, posted in Algorithms, Dynamic Programming, Problems. CSES 1084 - Apartments. When somebody searches for a handle that doesn't exists, we get Cross-Origin Request blocked and the status code becomes 0 in jQuery. A line graph of the rating change of the codeforces handle from the beginning till now. August 28, 2017 — 0 Comments. Tage (orangene Balken) aufgrund des Übermittlungsprozesses. Please share, i am new here. x10286. 2, based on Zed Code Competition) 24:37:39 Register now » *has extra registration → Filter Problems Difficulty: — dsu Add tag. Reply Code Challenge 2021: Standard & Teen Editions, [Tutorial] Everything about unordered_map. My Account: Codeforces Solutions. Timofey and a tree. 2) 09:21:57 Register now » Programming competitions and contests, programming community. → Pay attention Before contest Kotlin Heroes: Practice 6 08:36:46 Register now » a2oj has been shut down until further notice . Codeforces. D you also have DP list, if yes. In this blog we are going to solve a problem on codeforces. Codeforces Round #626 (Div.1, Div.2, based on Moscow Open Olympiad in Informatics, rated), 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.