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# Problem Tags Rating Solved
1497-E1 Square-Free Division (easy version)
data structures dp greedy +3
1700
1497-D Genius
bitmasks dp graphs +1
2500
1497-C2 k-LCM (hard version)
constructive algorithms math
1600
1497-C1 k-LCM (easy version)
constructive algorithms math
1200
1497-B M-arrays
constructive algorithms greedy math
1200
1497-A Meximization
brute force data structures greedy +1
800
1496-B Max and Mex
math
1100
1496-A Split it!
brute force constructive algorithms greedy +1
900
1495-F Squares
constructive algorithms data structures dp +2
3300
1495-E Qingshan and Daniel
brute force data structures greedy +1
3200
1495-D BFS Trees
combinatorics dfs and similar graphs +3
2600
1495-C Garden of the Sun
constructive algorithms graphs
2300
1495-B Let's Go Hiking
games greedy
1900
1495-A Diamond Miner
geometry greedy math +1
1200
1494-F Delete The Edges
brute force constructive algorithms dfs and similar +2
2900
1494-E A-Z Graph
constructive algorithms data structures graphs +1
2400
1494-D Dogeforces
constructive algorithms data structures dfs and similar +5
2300
1494-C 1D Sokoban
binary search dp greedy +2
1900
1494-B Berland Crossword
bitmasks brute force greedy +1
1400
1494-A ABC String
bitmasks brute force implementation
900
1493-F Enchanted Matrix
bitmasks interactive number theory
2600
1493-E Enormous XOR
bitmasks constructive algorithms greedy +3
2600
1493-D GCD of an Array
brute force data structures hashing +5
2100
1493-C K-beautiful Strings
binary search brute force constructive algorithms +2
2000
1493-B Planet Lapituletti
brute force implementation
1300
1493-A Anti-knapsack
constructive algorithms greedy
800
1492-E Almost Fault-Tolerant Database
brute force constructive algorithms dfs and similar +2
2500
1492-D Genius's Gambit
bitmasks constructive algorithms greedy +1
1900
1492-C Maximum width
binary search data structures dp +2
1500
1492-B Card Deck
data structures greedy math
1100
1492-A Three swimmers
math
800
1491-I Ruler Of The Zoo
brute force data structures
3500
1491-H Yuezheng Ling and Dynamic Tree
data structures trees
3400
1491-G Switch and Flip
constructive algorithms graphs math
2800
1491-F Magnets
binary search constructive algorithms interactive
2700
1491-E Fib-tree
brute force dfs and similar divide and conquer +2
2400
1491-D Zookeeper and The Infinite Zoo
bitmasks constructive algorithms dp +2
1800
1491-C Pekora and Trampoline
brute force data structures dp +2
1700
1491-B Minimal Cost
brute force math
1200
1491-A K-th Largest Value
brute force greedy implementation
800
1490-G Old Floppy Drive
binary search data structures math
1900
1490-F Equalize the Array
binary search data structures greedy +2
1500
1490-E Accidental Victory
binary search data structures greedy
1400
1490-D Permutation Transformation
dfs and similar divide and conquer implementation
1200
1490-C Sum of Cubes
binary search brute force math
1100
1490-B Balanced Remainders
brute force constructive algorithms math
1000
1490-A Dense Array
greedy math
800
1488-J Flower Shop
*special data structures fft +1
3100
1488-I Demonic Invasion
*special flows
3100
1488-H Build From Suffixes
*special combinatorics data structures
2800