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# Problem Tags Rating Solved
1408-D Searchlights
binary search brute force data structures +4
2000
1408-C Discrete Acceleration
binary search dp implementation +2
1500
1408-B Arrays Sum
constructive algorithms greedy math
1400
1408-A Circle Coloring
constructive algorithms
800
1407-E Egor in the Republic of Dagestan
constructive algorithms dfs and similar dp +3
2500
1407-D Discrete Centrifugal Jumps
data structures dp graphs
2200
1407-C Chocolate Bunny
constructive algorithms interactive math +1
1600
1407-B Big Vova
brute force greedy math +1
1300
1407-A Ahahahahahahahaha
constructive algorithms math
1100
1406-E Deleting Numbers
interactive math number theory
2600
1406-D Three Sequences
constructive algorithms data structures greedy +1
2200
1406-C Link Cut Centroids
constructive algorithms dfs and similar graphs +1
1700
1406-B Maximum Product
brute force dp greedy +2
1200
1406-A Subset Mex
greedy implementation math
900
1405-B Array Cancellation
constructive algorithms implementation
1000
1405-A Permutation Forgery
constructive algorithms
800
1404-E Bricks
flows graph matchings graphs
2800
1404-D Game of Pairs
constructive algorithms dfs and similar interactive +2
2800
1404-C Fixed Point Removal
binary search constructive algorithms data structures +2
2300
1404-B Tree Tag
dfs and similar dp games +1
1900
1404-A Balanced Bitstring
implementation strings
1500
1403-C Chess Rush
*special combinatorics dp +2
3200
1403-B Spring cleaning
*special data structures dfs and similar +2
2300
1403-A The Potion of Great Power
*special 2-sat binary search +5
2400
1402-C Star Trek
*special combinatorics dfs and similar +5
2600
1402-B Roads
*special geometry sortings
2900
1402-A Fancy Fence
*special data structures dsu +3
1800
1401-F Reverse and Swap
binary search bitmasks data structures
2400
1401-E Divide Square
data structures geometry implementation +1
2400
1401-D Maximum Distributed Tree
dfs and similar dp greedy +5
1800
1401-C Mere Array
constructive algorithms math number theory +1
1300
1401-B Ternary Sequence
constructive algorithms greedy math
1100
1401-A Distance and Axis
constructive algorithms math
900
1400-G Mercenaries
bitmasks brute force combinatorics +4
2600
1400-F x-prime Substrings
brute force dfs and similar dp +2
2800
1400-E Clear the Multiset
data structures divide and conquer dp +1
2200
1400-D Zigzags
brute force combinatorics data structures +2
1900
1400-C Binary String Reconstruction
2-sat brute force constructive algorithms +1
1500
1400-B RPG Protagonist
brute force greedy math
1700
1400-A String Similarity
constructive algorithms strings
800
1399-F Yet Another Segments Subset
data structures dp graphs +1
2300
1399-E2 Weights Division (hard version)
binary search dfs and similar greedy +3
2200
1399-E1 Weights Division (easy version)
data structures dfs and similar greedy +1
2000
1399-D Binary String To Subsequences
constructive algorithms data structures greedy +1
1500
1399-C Boats Competition
brute force greedy two pointers
1200
1399-B Gifts Fixing
greedy
800
1399-A Remove Smallest
greedy sortings
800
1398-G Running Competition
bitmasks fft math +1
2600
1398-F Controversial Rounds
binary search data structures dp +2
2500
1398-E Two Types of Spells
binary search data structures greedy +3
2200