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# Problem Tags Rating Solved
2107-F2 Cycling (Hard Version)
binary search brute force data structures +2
2800
2107-F1 Cycling (Easy Version)
binary search brute force dp +1
2300
2107-E Ain and Apple Tree
binary search constructive algorithms greedy +2
2600
2107-D Apple Tree Traversing
brute force dfs and similar greedy +2
2100
2107-C Maximum Subarray Sum
binary search constructive algorithms dp +2
1500
2107-B Apples in Boxes
games greedy math
1100
2107-A LRC and VIP
greedy number theory
800
2106-G2 Baudelaire (hard version)
binary search dfs and similar divide and conquer +3
2500
2106-G1 Baudelaire (easy version)
binary search constructive algorithms divide and conquer +3
2200
2106-F Goblin
dfs and similar dp dsu +2
1900
2106-E Wolf
binary search greedy math
1800
2106-D Flower Boy
binary search dp greedy +1
1500
2106-C Cherry Bomb
greedy math sortings
1000
2106-B St. Chroma
constructive algorithms greedy math
900
2106-A Dr. TC
brute force math
800
2104-G Modulo 3
data structures divide and conquer dsu +2
2700
2104-F Numbers and Strings
binary search brute force dfs and similar +3
2600
2104-E Unpleasant Strings
binary search dp greedy +1
1700
2104-D Array and GCD
binary search greedy math +1
1400
2104-C Card Game
brute force constructive algorithms games +2
1100
2104-B Move to the End
brute force data structures dp +2
1000
2104-A Three Decks
math
800
2103-F Maximize Nor
bitmasks data structures dp +2
2600
2103-E Keep the Sum
constructive algorithms implementation two pointers
2600
2103-D Local Construction
constructive algorithms dfs and similar implementation +1
2000
2103-C Median Splits
binary search greedy implementation +1
1600
2103-B Binary Typewriter
greedy math
1100
2103-A Common Multiple
brute force greedy implementation +1
800
2102-B The Picky Cat
implementation sortings
900
2102-A Dinner Time
constructive algorithms math
900
2101-F Shoo Shatters the Sunshine
combinatorics dp trees
3300
2101-E Kia Bakes a Cake
data structures dp greedy +1
3100
2101-D Mani and Segments
data structures implementation sortings +1
2500
2101-C 23 Kingdom
binary search brute force data structures +3
2200
2101-B Quartet Swapping
brute force data structures divide and conquer +2
1800
2101-A Mex in the Grid
constructive algorithms implementation
1300
2098-B Sasha and the Apartment Purchase
math sortings
1400
2098-A Vadim's Collection
brute force greedy
800
2097-F Lost Luggage
dp flows
3500
2097-E Clearing the Snowdrift
data structures dfs and similar dp +1
3100
2097-D Homework
bitmasks math matrices
2800
2097-C Bermuda Triangle
chinese remainder theorem geometry implementation +2
2400
2097-B Baggage Claim
combinatorics dfs and similar dp +5
2300
2097-A Sports Betting
2-sat brute force math +1
1400
2096-H Wonderful XOR Problem
bitmasks combinatorics dp +2
3200
2096-G Wonderful Guessing Game
bitmasks constructive algorithms interactive
3200
2096-F Wonderful Impostors
data structures implementation two pointers
3100
2096-E Wonderful Teddy Bears
greedy implementation sortings
2400
2096-D Wonderful Lightbulbs
combinatorics constructive algorithms math
2000
2096-C Wonderful City
dp implementation
1700