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