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# Problem Tags Rating Solved
2211-G Rational Bubble Sort
constructive algorithms geometry greedy
2900
2211-F Learning Binary Search
combinatorics divide and conquer dp +1
2400
2211-E Minimum Path Cover
brute force dp greedy +4
2500
2211-D AND-array
bitmasks combinatorics math
1900
2211-C2 Equal Multisets (Hard Version)
constructive algorithms dsu greedy
1800
2211-C1 Equal Multisets (Easy Version)
binary search brute force greedy +1
1300
2211-B Mickey Mouse Constructive
constructive algorithms dp greedy +1
1100
2211-A Antimedian Deletion
implementation math
800
2210-F A Simple Problem
binary search data structures greedy +2
2700
2210-E Binary Strings are Simple?
constructive algorithms implementation interactive +1
2700
2210-D A Simple RBS Problem
constructive algorithms math strings +1
2100
2210-C2 A Simple GCD Problem (Hard Version)
dp greedy number theory
2100
2210-C1 A Simple GCD Problem (Easy Version)
greedy number theory
1200
2210-B Simply Sitting on Chairs
data structures greedy
900
2210-A A Simple Sequence
constructive algorithms dp greedy +1
800
2209-F Dynamic Values And Maximum Sum
data structures greedy implementation +1
2700
2209-E A Trivial String Problem
brute force dp hashing +2
2200
2209-D Ghostfires
constructive algorithms greedy
1800
2209-C Find the Zero
constructive algorithms interactive
1400
2209-B Array
greedy
900
2209-A Flip Flops
greedy
800
2208-E Counting Cute Arrays
combinatorics dp
2700
2208-D2 Tree Orientation (Hard Version)
dfs and similar dsu graphs +3
2200
2208-D1 Tree Orientation (Easy Version)
constructive algorithms dfs and similar dsu +4
1800
2208-C Stamina and Tasks
dp greedy math
1300
2208-B Cyclists
brute force games greedy +3
1100
2208-A Bingo Candies
constructive algorithms math
800
2207-H3 Bowser's Castle (Hard Version)
constructive algorithms divide and conquer interactive +2
2207-H2 Bowser's Castle (Medium Version)
constructive algorithms divide and conquer interactive +2
2207-H1 Bowser's Castle (Easy Version)
binary search constructive algorithms divide and conquer +3
2207-G Toothless
constructive algorithms dfs and similar dsu
3300
2207-F Hanabi
binary search data structures dp +5
2900
2207-E2 N-MEX (Counting Version)
combinatorics constructive algorithms math
2400
2207-E1 N-MEX (Constructive Version)
constructive algorithms greedy
2100
2207-D Boxed Like a Fish
dfs and similar dp games +2
2200
2207-C Where's My Water?
data structures divide and conquer dp +1
1600
2207-B One Night At Freddy's
games greedy sortings
1600
2207-A 1-1
greedy strings
800
2206-M Deformed Balance
2900
2206-L Onion
3500
2206-K Time Display Stickers
binary search
1300
2206-J Worldwide Playlist
math
1700
2206-I Growth Factor
combinatorics dp math +1
2900
2206-H Reflect Sort
number theory
1800
2206-G Extra Transition
graphs
3100
2206-F Minesweeper String
fft number theory
2400
2206-E Parallel Sums
data structures geometry
2500
2206-D Christmas Tree Un-decoration
data structures dp trees
2600
2206-C Upside Down Dijkstra
dfs and similar
2200
2206-B Subtree Removal Game
binary search games trees
2500