Problems Playground
Login
Min rating
Max rating
Tag
Reset
# Problem Tags Rating Solved
1875-D Jellyfish and Mex
dp
1600
1875-C Jellyfish and Green Apple
bitmasks greedy math +1
1400
1875-A Jellyfish and Undertale
brute force greedy
900
1874-G Jellyfish and Inscryption
dp
3500
1874-F Jellyfish and OEIS
dp
3500
1874-E Jellyfish and Hack
dp math
3000
1874-D Jellyfish and Miku
divide and conquer dp math +1
2800
1874-C Jellyfish and EVA
dp graphs greedy +2
2300
1874-B Jellyfish and Math
bitmasks brute force dfs and similar +3
2400
1874-A Jellyfish and Game
brute force games greedy +1
1200
1873-H Mad City
dfs and similar dsu games +3
1700
1873-G ABBC or BACB
constructive algorithms greedy
1500
1873-F Money Trees
binary search greedy math +1
1300
1873-E Building an Aquarium
binary search sortings
1100
1873-D 1D Eraser
greedy implementation two pointers
800
1873-C Target Practice
implementation math
800
1873-B Good Kid
brute force greedy math
800
1873-A Short Sort
brute force implementation
800
1872-G Replace With Product
brute force greedy math
2000
1872-F Selling a Menagerie
dfs and similar dsu graphs +2
1800
1872-E Data Structures Fan
binary search bitmasks data structures +1
1500
1872-D Plus Minus Permutation
math
1200
1872-C Non-coprime Split
math number theory
1100
1872-B The Corridor or There and Back Again
greedy implementation
900
1872-A Two Vessels
brute force greedy math
800
1870-H Standard Graph Problem
data structures graphs greedy +1
3500
1870-G MEXanization
data structures
3300
1870-F Lazy Numbers
binary search math
2900
1870-E Another MEX Problem
bitmasks brute force dp +1
2300
1870-D Prefix Purchase
greedy implementation sortings
1800
1870-C Colorful Table
binary search data structures dp +3
1300
1870-B Friendly Arrays
bitmasks greedy math
1200
1870-A MEXanized Array
constructive algorithms greedy math
800
1869-B 2D Traveling
geometry math shortest paths +1
1100
1869-A Make It Zero
constructive algorithms
900
1868-F LIS?
data structures greedy implementation
3500
1868-E Min-Sum-Max
constructive algorithms dp greedy
3500
1868-D Flower-like Pseudotree
constructive algorithms graphs greedy +2
3000
1868-C Travel Plan
combinatorics dp implementation +2
2400
1868-B2 Candy Party (Hard Version)
bitmasks constructive algorithms dp +3
2100
1868-B1 Candy Party (Easy Version)
bitmasks constructive algorithms graphs +3
1700
1868-A Fill in the Matrix
constructive algorithms implementation
1300
1867-F Most Different Tree
brute force constructive algorithms dfs and similar +2
2700
1867-E2 Salyg1n and Array (hard version)
constructive algorithms interactive
2200
1867-E1 Salyg1n and Array (simple version)
constructive algorithms interactive math
2000
1867-D Cyclic Operations
brute force constructive algorithms dfs and similar +3
1800
1867-C Salyg1n and the MEX Game
constructive algorithms data structures games +2
1300
1867-B XOR Palindromes
bitmasks constructive algorithms strings
1100
1867-A green_gold_dog, array and permutation
constructive algorithms sortings
800
1866-M Mighty Rock Tower
brute force combinatorics dp +2
2400