Problems Playground
Login
Min rating
Max rating
Tag
Reset
# Problem Tags Rating Solved
1508-D Swap Pass
constructive algorithms geometry sortings
3000
1508-C Complete the MST
bitmasks brute force data structures +5
2500
1508-B Almost Sorted
binary search combinatorics constructive algorithms +1
1800
1508-A Binary Literature
constructive algorithms greedy implementation +2
1900
1506-G Maximize the Remaining String
brute force data structures dp +2
2000
1506-F Triangular Paths
constructive algorithms graphs math +2
2000
1506-E Restoring the Permutation
constructive algorithms implementation
1500
1506-D Epic Transformation
constructive algorithms data structures greedy
1400
1506-C Double-ended Strings
brute force implementation strings
1000
1506-B Partial Replacement
greedy implementation
1100
1506-A Strange Table
math
800
1505-I Mysterious language again, seriously?
*special
2200
1505-H L BREAK into program
*special
2500
1505-G Encoded message
*special implementation
2600
1505-F Math
*special math
2200
1505-E Cakewalk
*special greedy implementation +1
1800
1505-D Xenolith? Hippodrome?
*special number theory
1800
1505-C Fibonacci Words
*special implementation
1400
1505-B DMCA
*special implementation number theory
1600
1505-A Is it rated - 2
*special implementation interactive
900
1504-B Flip the Bits
constructive algorithms greedy implementation +1
1200
1504-A Déjà Vu
constructive algorithms strings
800
1503-F Balance the Cards
constructive algorithms data structures divide and conquer +3
3500
1503-E 2-Coloring
combinatorics dp math
3100
1503-D Flip the Cards
2-sat constructive algorithms data structures +3
2600
1503-C Travelling Salesman Problem
binary search data structures dp +4
2200
1503-B 3-Coloring
constructive algorithms games interactive
1700
1503-A Balance the Bits
constructive algorithms greedy
1600
1501-B Napoleon Cake
dp implementation sortings
900
1501-A Alexey and Train
implementation
800
1500-F Cupboards Jumps
dp
3500
1500-E Subset Trick
binary search data structures
3300
1500-D Tiles for Bathroom
data structures sortings two pointers
2900
1500-C Matrix Sorting
bitmasks brute force constructive algorithms +2
2600
1500-B Two chandeliers
binary search brute force chinese remainder theorem +2
2200
1500-A Going Home
brute force hashing implementation +1
1800
1499-G Graph Coloring
data structures graphs interactive
3100
1499-F Diameter Cuts
combinatorics dfs and similar dp +1
2400
1499-E Chaotic Merge
combinatorics dp math +1
2400
1499-D The Number of Pairs
dp math number theory
2100
1499-C Minimum Grid Path
brute force data structures greedy +1
1500
1499-B Binary Removals
brute force dp greedy +1
1000
1499-A Domino on Windowsill
combinatorics constructive algorithms math
800
1498-F Christmas Game
bitmasks data structures dfs and similar +4
2500
1498-E Two Houses
brute force graphs greedy +2
2200
1498-D Bananas in a Microwave
dfs and similar dp graphs +1
2200
1498-C Planar Reflections
brute force data structures dp
1600
1498-B Box Fitting
binary search bitmasks data structures +1
1300
1498-A GCD Sum
brute force math
800
1497-E2 Square-Free Division (hard version)
data structures dp greedy +3
2500