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# Problem Tags Rating Solved
1368-D AND, OR and square sum
bitmasks greedy math
1700
1368-C Even Picture
constructive algorithms
1500
1368-B Codeforces Subsequences
brute force constructive algorithms greedy +2
1500
1368-A C+=
brute force greedy implementation +1
800
1367-F2 Flying Sort (Hard Version)
binary search data structures dp +3
2400
1367-F1 Flying Sort (Easy Version)
dp greedy two pointers
2100
1367-E Necklace Assembly
brute force dfs and similar dp +3
1900
1367-D Task On The Board
constructive algorithms greedy implementation +1
1800
1367-C Social Distance
constructive algorithms greedy math
1300
1367-B Even Array
greedy math
800
1367-A Short Substrings
implementation strings
800
1366-G Construct the String
data structures dp strings
2700
1366-F Jog Around The Graph
binary search dp geometry +1
2700
1366-E Two Arrays
binary search brute force combinatorics +3
2100
1366-D Two Divisors
constructive algorithms math number theory
2000
1366-C Palindromic Paths
greedy math
1500
1366-B Shuffle
math two pointers
1300
1366-A Shovels and Swords
binary search greedy math
1100
1365-G Secure Password
bitmasks combinatorics constructive algorithms +2
2800
1365-F Swaps Again
constructive algorithms implementation sortings
2100
1365-E Maximum Subsequence Value
brute force constructive algorithms
1900
1365-D Solve The Maze
constructive algorithms dfs and similar dsu +4
1700
1365-C Rotation Matching
constructive algorithms data structures greedy +1
1400
1365-B Trouble Sort
constructive algorithms implementation
1300
1365-A Matrix Game
games greedy implementation
1100
1364-E X-OR
bitmasks constructive algorithms divide and conquer +2
2700
1364-D Ehab's Last Corollary
constructive algorithms dfs and similar graphs +3
2100
1364-C Ehab and Prefix MEXs
brute force constructive algorithms greedy
1600
1364-B Most socially-distanced subsequence
greedy two pointers
1300
1364-A XXXXX
brute force data structures number theory +1
1200
1363-F Rotating Substrings
dp strings
2600
1363-E Tree Shuffling
dfs and similar dp greedy +1
2000
1363-D Guess The Maximums
binary search implementation interactive +1
2100
1363-C Game On Leaves
games trees
1600
1363-B Subsequence Hate
implementation strings
1400
1363-A Odd Selection
brute force implementation math
1200
1362-C Johnny and Another Rating Drop
bitmasks greedy math
1400
1362-B Johnny and His Hobbies
bitmasks brute force
1200
1362-A Johnny and Ancient Computer
implementation
1000
1361-F Johnny and New Toy
data structures implementation math
3300
1361-E James and the Chase
dfs and similar graphs probabilities +1
3000
1361-D Johnny and James
greedy implementation math +1
2900
1361-C Johnny and Megan's Necklace
binary search bitmasks constructive algorithms +3
2500
1361-B Johnny and Grandmaster
greedy implementation math +1
1900
1361-A Johnny and Contribution
constructive algorithms graphs greedy +1
1700
1360-H Binary Median
binary search bitmasks brute force +1
2100
1360-G A/B Matrix
constructive algorithms greedy math
1900
1360-F Spy-string
bitmasks brute force constructive algorithms +3
1700
1360-E Polygon
dp graphs implementation +1
1300
1360-D Buying Shovels
math number theory
1300