Problems Playground
Login
Min rating
Max rating
Tag
Reset
# Problem Tags Rating Solved
1263-D Secret Passwords
dfs and similar dsu graphs
1500
1263-C Everyone is a Winner!
binary search math meet-in-the-middle +1
1400
1263-B PIN Codes
greedy implementation
1400
1263-A Sweet Problem
math
1100
1261-F Xor-Set
bitmasks divide and conquer math
3100
1260-F Colored Tree
data structures trees
2700
1260-E Tournament
brute force dp greedy
2400
1260-D A Game with Traps
binary search dp greedy +1
1900
1260-C Infinite Fence
greedy math number theory
1700
1260-B Obtain Two Zeroes
binary search math
1300
1260-A Heating
math
1000
1257-G Divisor Set
divide and conquer fft greedy +2
2600
1257-F Make Them Similar
bitmasks brute force hashing +1
2400
1257-E The Contest
data structures dp greedy
2000
1257-D Yet Another Monster Killing Problem
binary search data structures dp +3
1700
1257-C Dominated Subarray
greedy implementation sortings +2
1200
1257-B Magic Stick
math
1000
1257-A Two Rival Students
greedy math
800
1256-F Equalizing Two Strings
constructive algorithms sortings strings
2000
1256-E Yet Another Division Into Teams
dp greedy sortings
2000
1256-D Binary String Minimizing
greedy
1500
1256-C Platforms Jumping
greedy
1700
1256-B Minimize the Permutation
greedy
1400
1256-A Payment Without Change
math
1000
1255-C League of Leesins
constructive algorithms implementation
1600
1255-B Fridge Lockers
graphs implementation
1100
1255-A Changing Volume
math
800
1254-E Send Tree to Charlie
combinatorics dfs and similar dsu +1
3300
1254-D Tree Queries
data structures probabilities trees
2700
1254-C Point Ordering
constructive algorithms geometry interactive +1
2300
1254-B2 Send Boxes to Alice (Hard Version)
constructive algorithms greedy math +3
2100
1254-B1 Send Boxes to Alice (Easy Version)
constructive algorithms greedy math +3
1800
1254-A Feeding Chicken
constructive algorithms greedy implementation
1700
1253-F Cheap Robot
binary search dsu graphs +2
2500
1253-E Antenna Coverage
data structures dp greedy +1
2200
1253-D Harmonious Graph
constructive algorithms dfs and similar dsu +3
1700
1253-C Sweets Eating
dp greedy math +1
1500
1253-B Silly Mistake
greedy implementation
1400
1253-A Single Push
implementation
1000
1252-L Road Construction
flows graphs
2300
1252-K Addition Robot
data structures math matrices
2100
1252-J Tiling Terrace
brute force dp
2300
1252-I Mission Possible
3000
1252-H Twin Buildings
greedy implementation
1800
1252-G Performance Review
data structures
2100
1252-F Regular Forestation
hashing trees
2400
1252-E Songwriter
greedy two pointers
2200
1252-D Find String in a Grid
data structures dp strings +1
3000
1252-C Even Path
data structures implementation
1600
1252-B Cleaning Robots
dp trees
2300