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# Problem Tags Rating Solved
616-E Sum of Remainders
implementation math number theory
2200
616-D Longest k-Good Segment
binary search data structures two pointers
1600
616-C The Labyrinth
dfs and similar
1600
616-B Dinner with Emma
games greedy
1000
616-A Comparing Two Long Integers
implementation strings
900
615-E Hexagons
binary search implementation math
2100
615-D Multipliers
math number theory
2000
615-C Running Track
dp greedy strings +1
2000
615-B Longtail Hedgehog
dp graphs
1600
615-A Bulbs
implementation
800
614-B Gena's Code
implementation math
1400
614-A Link/Cut Tree
brute force implementation
1500
613-E Puzzle Lover
dp hashing strings
3200
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612-B HDD is Outdated Technology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