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# Problem Tags Rating Solved
1380-B Universal Solution
greedy
1400
1380-A Three Indices
brute force data structures
900
1379-F2 Chess Strikes Back (hard version)
data structures divide and conquer
2800
1379-F1 Chess Strikes Back (easy version)
binary search data structures
2700
1379-E Inverse Genealogy
constructive algorithms divide and conquer dp +2
2800
1379-D New Passenger Trams
binary search brute force data structures +2
2300
1379-C Choosing flowers
binary search brute force data structures +5
2000
1379-B Dubious Cyrpto
binary search brute force math +1
1500
1379-A Acacius and String
brute force implementation strings
1500
1375-I Cubic Lattice
geometry math matrices +1
3500
1375-H Set Merging
constructive algorithms divide and conquer
3300
1375-G Tree Modification
brute force constructive algorithms dfs and similar +3
2800
1375-F Integer Game
constructive algorithms games interactive +1
2600
1375-E Inversion SwapSort
constructive algorithms greedy sortings
2500
1375-D Replace by MEX
brute force constructive algorithms sortings
1900
1375-C Element Extermination
constructive algorithms data structures greedy
1400
1375-B Neighbor Grid
constructive algorithms greedy
1200
1375-A Sign Flipping
constructive algorithms math
1100
1374-F Cyclic Shifts Sorting
brute force constructive algorithms implementation +1
2400
1374-E2 Reading Books (hard version)
data structures greedy implementation +3
2500
1374-E1 Reading Books (easy version)
data structures greedy sortings
1600
1374-D Zero Remainder Array
math sortings two pointers
1400
1374-C Move Brackets
greedy strings
1000
1374-B Multiply by 2, divide by 6
math
900
1374-A Required Remainder
math
800
1373-G Pawns
data structures divide and conquer greedy
2600
1373-F Network Coverage
binary search constructive algorithms data structures +1
2400
1373-E Sum of Digits
brute force constructive algorithms dp +1
2200
1373-D Maximum Sum on Even Positions
divide and conquer dp greedy +1
1600
1373-C Pluses and Minuses
math
1300
1373-B 01 Game
games
900
1373-A Donut Shops
greedy implementation math
1000
1372-F Omkar and Modes
binary search divide and conquer interactive
2700
1372-E Omkar and Last Floor
dp greedy two pointers
2900
1372-D Omkar and Circle
brute force dp games +1
2100
1372-C Omkar and Baseball
constructive algorithms math
1500
1372-B Omkar and Last Class of Math
greedy math number theory
1300
1372-A Omkar and Completion
constructive algorithms implementation
800
1371-F Raging Thunder
data structures divide and conquer implementation
2800
1371-E2 Asterism (Hard Version)
binary search combinatorics dp +3
2300
1371-E1 Asterism (Easy Version)
binary search brute force combinatorics +3
1900
1371-D Grid-00100
constructive algorithms greedy implementation
1600
1371-C A Cookie for You
greedy implementation math
1300
1371-B Magical Calendar
math
1200
1371-A Magical Sticks
math
800
1370-F2 The Hidden Pair (Hard Version)
binary search dfs and similar graphs +3
2700
1370-F1 The Hidden Pair (Easy Version)
binary search dfs and similar graphs +3
2400
1370-E Binary Subsequence Rotation
binary search constructive algorithms data structures +1
2100
1370-D Odd-Even Subsequence
binary search dp dsu +2
2000
1370-C Number Game
games math number theory
1400