Problems Playground
Login
Min rating
Max rating
Tag
Reset
# Problem Tags Rating Solved
613-D Kingdom and its Cities
dfs and similar divide and conquer dp +3
2800
613-C Necklace
constructive algorithms math
2500
613-B Skills
binary search brute force dp +3
1900
613-A Peter and Snow Blower
binary search geometry ternary search
1900
612-F Simba on the Circle
dp
2600
612-E Square Root of Permutation
combinatorics constructive algorithms dfs and similar +2
2200
612-D The Union of k-Segments
greedy sortings
1800
612-C Replace To Make Regular Bracket Sequence
data structures expression parsing math
1400
612-B HDD is Outdated Technology
implementation math
1200
612-A The Text Splitting
brute force implementation strings
1300
611-H New Year and Forgotten Tree
constructive algorithms flows graphs
3200
611-G New Year and Cake
geometry two pointers
2900
611-F New Year and Cleaning
binary search implementation
2500
611-E New Year and Three Musketeers
data structures greedy sortings
2400
611-D New Year and Ancient Prophecy
dp hashing strings
2000
611-C New Year and Domino
dp implementation
1500
611-B New Year and Old Property
bitmasks brute force implementation
1300
611-A New Year and Days
implementation
900
610-E Alphabet Permutations
data structures strings
2500
610-D Vika and Segments
constructive algorithms data structures geometry +1
2300
610-C Harmony Analysis
constructive algorithms
1800
610-B Vika and Squares
constructive algorithms implementation
1300
610-A Pasha and Stick
combinatorics math
1000
609-F Frogs and mosquitoes
data structures greedy
2500
609-E Minimum spanning tree for each edge
data structures dfs and similar dsu +2
2100
609-D Gadgets for dollars and pounds
binary search greedy two pointers
2000
609-C Load Balancing
implementation math
1500
609-B The Best Gift
constructive algorithms implementation
1100
609-A USB Flash Drives
greedy implementation sortings
800
608-B Hamming Distance Sum
combinatorics strings
1500
608-A Saitama Destroys Hotel
implementation math
1000
607-E Cross Sum
binary search geometry
3300
607-D Power Tree
data structures trees
2600
607-C Marbles
hashing strings
2500
607-B Zuma
dp
1900
607-A Chain Reaction
binary search dp
1600
606-B Testing Robots
implementation
1600
606-A Magic Spheres
implementation
1200
605-E Intergalaxy Trips
probabilities shortest paths
2700
605-D Board Game
data structures dfs and similar
2500
605-C Freelancer's Dreams
geometry
2400
605-B Lazy Student
constructive algorithms data structures graphs
1700
605-A Sorting Railway Cars
constructive algorithms greedy
1600
604-B More Cowbell
binary search greedy
1400
604-A Uncowed Forces
implementation
1000
603-E Pastoral Oddities
data structures divide and conquer dsu +2
3000
603-D Ruminations on Ruminants
geometry math
2900
603-C Lieges of Legendre
games math
2200
603-B Moodular Arithmetic
combinatorics dfs and similar dsu +2
1800
603-A Alternative Thinking
dp greedy math
1600