Problems Playground
Login
Min rating
Max rating
Tag
Reset
# Problem Tags Rating Solved
1370-B GCD Compression
constructive algorithms math number theory
1100
1370-A Maximum GCD
greedy implementation math +1
800
1369-F BareLee
dfs and similar dp games
2700
1369-E DeadLee
data structures dfs and similar greedy +2
2400
1369-D TediousLee
dp graphs greedy +2
1900
1369-C RationalLee
greedy math sortings +1
1400
1369-B AccurateLee
greedy implementation strings
1200
1369-A FashionabLee
geometry math
800
1368-H2 Breadboard Capacity (hard version)
3500
1368-H1 Breadboard Capacity (easy version)
dp flows greedy
3300
1368-G Shifting Dominoes
data structures geometry graphs +1
3200
1368-F Lamps on a Circle
games implementation interactive +1
2600
1368-E Ski Accidents
constructive algorithms graphs greedy
2500
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