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# Problem Tags Rating Solved
1614-A Divan and a Store
brute force constructive algorithms greedy
800
1613-F Tree Coloring
combinatorics divide and conquer fft
2600
1613-E Crazy Robot
dfs and similar graphs
2000
1613-D MEX Sequences
dp math
1900
1613-C Poisoned Dagger
binary search
1200
1613-B Absent Remainder
greedy implementation sortings
1000
1613-A Long Comparison
implementation math
900
1612-G Max Sum Array
combinatorics constructive algorithms greedy +1
2500
1612-F Armor and Weapons
brute force dp greedy +1
2800
1612-E Messages
brute force dp greedy +2
2000
1612-D X-Magic Pair
math number theory
1600
1612-C Chat Ban
binary search math
1300
1612-B Special Permutation
constructive algorithms greedy
900
1612-A Distance
brute force constructive algorithms
800
1611-G Robot and Candies
data structures graph matchings greedy
2500
1611-F ATM and Students
binary search data structures two pointers
1800
1611-E2 Escape The Maze (hard version)
dfs and similar dp greedy +2
1900
1611-E1 Escape The Maze (easy version)
dfs and similar greedy shortest paths +2
1700
1611-D Weights Assignment For Tree Edges
constructive algorithms trees
1500
1611-C Polycarp Recovers the Permutation
constructive algorithms
1000
1611-B Team Composition: Programmers and Mathematicians
binary search constructive algorithms math
800
1611-A Make Even
constructive algorithms math
800
1610-I Mashtali vs AtCoder
games trees
3100
1610-H Squid Game
data structures dfs and similar greedy +1
3100
1610-G AmShZ Wins a Bet
data structures greedy hashing
3300
1610-F Mashtali: a Space Oddysey
constructive algorithms dfs and similar graphs
3000
1610-E AmShZ and G.O.A.T.
binary search brute force greedy +2
2300
1610-D Not Quite Lee
combinatorics dp math +1
2000
1610-C Keshi Is Throwing a Party
binary search greedy
1600
1610-B Kalindrome Array
greedy two pointers
1100
1610-A Anti Light's Cell Guessing
math
900
1609-H Pushing Robots
3500
1609-G A Stroll Around the Matrix
data structures greedy math
3000
1609-F Interesting Sections
data structures divide and conquer meet-in-the-middle +1
2800
1609-E William The Oblivious
bitmasks data structures dp +1
2400
1609-D Social Network
dsu graphs greedy +2
1600
1609-C Complex Market Analysis
binary search dp implementation +3
1400
1609-B William the Vigilant
implementation strings
1100
1609-A Divide and Multiply
greedy implementation math +1
900
1608-G Alphabetic Tree
binary search data structures dfs and similar +4
3500
1608-F MEX counting
combinatorics dp implementation
3200
1608-E The Cells on the Paper
binary search implementation sortings
2800
1608-D Dominoes
combinatorics fft graphs +2
2400
1608-C Game Master
data structures dfs and similar dp +3
1700
1608-B Build the Permutation
constructive algorithms greedy
1200
1608-A Find Array
constructive algorithms math
800
1607-H Banquet Preparations 2
greedy sortings two pointers
2200
1607-G Banquet Preparations 1
greedy
2200
1607-F Robot on the Board 2
brute force dfs and similar graphs +1
2300
1607-E Robot on the Board 1
implementation
1600