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Codeforces Div. 2 - F Problems problems
Problem Name Online Judge Contest Difficulty Level
1 Ant colony Categories Codeforces Codeforces Round #271 (Div. 2) 4
2 Video Cards Categories Codeforces Codeforces Round #376 (Div. 2) 5
3 SUM and REPLACE Categories Codeforces Educational Codeforces Round 37 (Rated for Div. 2) 5
4 Group Projects Categories Codeforces 8VC Venture Cup 2016 - Elimination Round 6
5 st-Spanning Tree Categories Codeforces Codeforces Round #375 (Div. 2) 6
6 Fence Categories Codeforces Codeforces Round #145 (Div. 2, ACM-ICPC Rules) & Codeforces Round #145 (Div. 1, ACM-ICPC Rules) 6
7 New Year Tree Categories Codeforces Good Bye 2013 6
8 Mathematical Analysis Rocks! Categories Codeforces Codeforces Round #116 (Div. 2, ACM-ICPC Rules) 6
9 Special Matrices Categories Codeforces Codeforces Round #277.5 (Div. 2) 6
10 Polycarp and Hay Categories Codeforces Codeforces Round #346 (Div. 2) 6
11 A Heap of Heaps Categories Codeforces Codeforces Round #300 6
12 MEX Queries Categories Codeforces Educational Codeforces Round 23 7
13 Break Up Categories Codeforces Codeforces Round #364 (Div. 1) & Codeforces Round #364 (Div. 2) 7
14 Axel and Marston in Bitland Categories Codeforces ?????????? 2017 - ????? (?????? ??? ??????-??????????) 7
15 Couple Cover Categories Codeforces Educational Codeforces Round 14 7
16 Restore a Number Categories Codeforces Codeforces Round #350 (Div. 2) 7
17 Treeland Tour Categories Codeforces Codeforces Round #279 (Div. 2) 7
18 Lizard Era: Beginning Categories Codeforces Codeforces Round #325 (Div. 1) & Codeforces Round #325 (Div. 2) 7
19 Peterson Polyglot Categories Codeforces Codeforces Round #402 (Div. 1) & Codeforces Round #402 (Div. 2) 7
20 Letters Removing Categories Codeforces Codeforces Round #452 (Div. 2) 7
21 Bacterial Melee Categories Codeforces 8VC Venture Cup 2017 - Final Round 7
22 Bamboo Partition Categories Codeforces Codeforces Round #424 (Div. 1, rated, based on VK Cup Finals) & Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) 7
23 PolandBall and Gifts Categories Codeforces 8VC Venture Cup 2017 - Elimination Round 7
24 New Year and Rainbow Roads Categories Codeforces Good Bye 2017 7
25 Coprime Subsequences Categories Codeforces Educational Codeforces Round 20 7
26 Barrels and boxes Categories Codeforces Divide by Zero 2017 and Codeforces Round #399 (Div. 1 + Div. 2, combined) 7
27 Tourist Reform Categories Codeforces Codeforces Round #377 (Div. 2) 7
28 Drivers Dissatisfaction Categories Codeforces Codeforces Round #378 (Div. 2) 7
29 Random Query Categories Codeforces Educational Codeforces Round 28 7
30 Expected diameter of a tree Categories Codeforces Codeforces Round #411 (Div. 1) & Codeforces Round #411 (Div. 2) 7
31 Yet Another Minimization Problem Categories Codeforces Codeforces Round #438 by Sberbank and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 8
32 Zublicanes and Mumocrates Categories Codeforces Codeforces Round #322 (Div. 2) 8
33 Santa Clauses and a Soccer Championship Categories Codeforces Technocup 2017 - Elimination Round 3 8
34 Cities Excursions Categories Codeforces Codeforces Round #436 (Div. 2) 8
35 New Year and Cleaning Categories Codeforces Good Bye 2015 8
36 Cowslip Collections Categories Codeforces CROC 2016 - Elimination Round 8
37 Geometrical Progression Categories Codeforces Codeforces Round #392 (Div. 2) 8
38 The Sum of the k-th Powers Categories Codeforces Educational Codeforces Round 7 8
39 Polycarp's problems Categories Codeforces Technocup 2017 - Elimination Round 1 (Unofficially Open for Everyone, Rated for Div. 2) 8
40 Music in Car Categories Codeforces Codeforces Round #386 (Div. 2) 8
41 Almost Permutation Categories Codeforces Educational Codeforces Round 29 8
42 Escape Through Leaf Categories Codeforces ICM Technex 2018 and Codeforces Round #463 (Div. 1 + Div. 2, combined) 8
43 Magic Matrix Categories Codeforces Educational Codeforces Round 9 8
44 Progress Monitoring Categories Codeforces Codeforces Round #289 (Div. 2, ACM ICPC Rules) 8
45 Anti-Palindromize Categories Codeforces Educational Codeforces Round 31 8
46 Prefix Sums Categories Codeforces Educational Codeforces Round 26 8
47 Double Knapsack Categories Codeforces Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) 8
48 Present to Mom Categories Codeforces Codeforces Beta Round #95 (Div. 2) 8
49 Machine Learning Categories Codeforces Codeforces Round #466 (Div. 2) 8
50 Bear and Bowling 4 Categories Codeforces Educational Codeforces Round 11 8
51 Card Game Categories Codeforces Educational Codeforces Round 21 8
52 Best Edge Weight Categories Codeforces Codeforces Round #423 (Div. 1, rated, based on VK Cup Finals) & Codeforces Round #423 (Div. 2, rated, based on VK Cup Finals) 8
53 Divisibility Categories Codeforces Codeforces Round #461 (Div. 2) 8
54 Legen... Categories Codeforces Codeforces Round #362 (Div. 1) & Codeforces Round #362 (Div. 2) 8
55 The Chocolate Spree Categories Codeforces Manthan, Codefest 16 8
56 Mausoleum Categories Codeforces Codeforces Round #Pi (Div. 2) 8
57 String Compression Categories Codeforces Educational Codeforces Round 25 8
58 Leha and security system Categories Codeforces Tinkoff Challenge - Final Round (Codeforces Round #414, rated, Div. 1 + Div. 2) 8
59 String Set Queries Categories Codeforces Educational Codeforces Round 16 8
60 Financiers Game Categories Codeforces Technocup 2017 - Elimination Round 2 8
61 Subtree Minimum Query Categories Codeforces Educational Codeforces Round 33 (Rated for Div. 2) 8
62 Wizard's Tour Categories Codeforces ?????????? 2018 - ?????????? ????? 1 8
63 Forbidden Indices Categories Codeforces Educational Codeforces Round 30 8
64 LCS Again Categories Codeforces Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] & Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] 8
65 Level Generation Categories Codeforces Educational Codeforces Round 24 8
66 Team Rocket Rises Again Categories Codeforces Codecraft-17 and Codeforces Round #391 (Div. 1 + Div. 2, combined) 8
67 Tree Destruction Categories Codeforces Educational Codeforces Round 35 (Rated for Div. 2) 8
68 Restoring the Expression Categories Codeforces Codeforces Round #451 (Div. 2) 8
69 Paper task Categories Codeforces IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) 8
70 Souvenirs Categories Codeforces Codeforces Round #397 by Kaspersky Lab and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 8
71 Family Photos Categories Codeforces Canada Cup 2016 9
72 AND-permutations Categories Codeforces Codeforces Round #455 (Div. 2) 9
73 Erasing Substrings Categories Codeforces Educational Codeforces Round 38 (Rated for Div. 2) 9
74 Pasha and Pipe Categories Codeforces Codeforces Round #293 (Div. 2) 9
75 Substrings in a String Categories Codeforces Codecraft-18 and Codeforces Round #458 (Div. 1 + Div. 2, combined) 9
76 New Year Shopping Categories Codeforces Good Bye 2014 9
77 Perishable Roads Categories Codeforces VK Cup 2017 - Round 3 9
78 New Year Snowflake Categories Codeforces Codeforces Round #100 9
79 Bipartite Checking Categories Codeforces Educational Codeforces Round 22 9
80 Madness Categories Codeforces Codeforces Round #422 (Div. 2) 9
81 Four Divisors Categories Codeforces Educational Codeforces Round 12 9
82 Simplified Nonogram Categories Codeforces Codeforces Round #298 (Div. 2) 9
83 Strongly Connected Tournament Categories Codeforces Hello 2018 9
84 Design Tutorial: Change the Goal Categories Codeforces Codeforces Round #270 9
85 Cyclic Cipher Categories Codeforces Intel Code Challenge Elimination Round (Div. 1 + Div. 2, combined) 9
86 Igor and Interesting Numbers Categories Codeforces Codeforces Round #387 (Div. 2) 9
87 Sherlock's bet to Moriarty Categories Codeforces ICM Technex 2017 and Codeforces Round #400 (Div. 1 + Div. 2, combined) 9
88 Clear The Matrix Categories Codeforces Educational Codeforces Round 34 (Rated for Div. 2) 9
89 Edge coloring of bipartite graph Categories Codeforces Educational Codeforces Round 2 9
90 Paths Categories Codeforces Technocup 2018 - Elimination Round 2 9
91 Dasha and Photos Categories Codeforces Codeforces Round #394 (Div. 2) 9
92 Xors on Segments Categories Codeforces Educational Codeforces Round 6 9
93 Fafa and Array Categories Codeforces Codeforces Round #465 (Div. 2) 9
94 Roads in the Kingdom Categories Codeforces Codeforces Round #427 (Div. 2) 9
95 Bear and Fair Set Categories Codeforces Educational Codeforces Round 8 9
96 New Year and Finding Roots Categories Codeforces Good Bye 2016 9
97 Limak and Shooting Points Categories Codeforces Codeforces Round #363 (Div. 1) & Codeforces Round #363 (Div. 2) 9
98 Expensive Strings Categories Codeforces Educational Codeforces Round 5 9
99 Smart Boy Categories Codeforces School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) 9
100 T-Shirts Categories Codeforces Educational Codeforces Round 15 9
101 Cutlet Categories Codeforces Codeforces Round #464 (Div. 2) 9
102 Mice and Holes Categories Codeforces Educational Codeforces Round 19 9
103 Connecting Vertices Categories Codeforces Educational Codeforces Round 32 9
104 Gnomes of Might and Magic Categories Codeforces Codeforces Round #115 10
105 Mages and Monsters Categories Codeforces Educational Codeforces Round 18 10
106 Row of Models Categories Codeforces Codeforces Round #444 (Div. 2) 10
107 Guards In The Storehouse Categories Codeforces Educational Codeforces Round 27 10
108 Nagini Categories Codeforces Manthan, Codefest 17 10
109 Simba on the Circle Categories Codeforces Educational Codeforces Round 4 10
110 Bearish Fanpages Categories Codeforces VK Cup 2016 - Round 3 10
111 Tree nesting Categories Codeforces Educational Codeforces Round 17 10
112 Beautiful fountains rows Categories Codeforces Playrix Codescapes Cup (Codeforces Round #413, rated, Div. 1 + Div. 2) 10
113 Duff in Mafia Categories Codeforces Codeforces Round #326 (Div. 1) & Codeforces Round #326 (Div. 2) 10
114 Mahmoud and Ehab and the final stage Categories Codeforces Codeforces Round #435 (Div. 2) 10
115 Snow sellers Categories Codeforces School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round #45 (ACM-ICPC Rules) 10
116 Ants on a Circle Categories Codeforces Educational Codeforces Round 10 10
117 Cut Length Categories Codeforces Educational Codeforces Round 1 10
118 Sequence Recovery Categories Codeforces Codeforces Round #408 (Div. 2) 10
119 A Game With Numbers Categories Codeforces Codeforces Round #460 (Div. 2) 10