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# Problem Tags Rating Solved
1176-E Cover it!
dfs and similar dsu graphs +2
1700
1176-D Recover it!
dfs and similar graphs greedy +2
1800
1176-C Lose it!
dp greedy implementation
1300
1176-B Merge it!
math
1100
1176-A Divide it!
brute force greedy implementation
800
1175-G Yet Another Partiton Problem
data structures divide and conquer dp +2
3000
1175-F The Number of Subpermutations
brute force data structures divide and conquer +2
2500
1175-E Minimal Segment Cover
data structures dfs and similar divide and conquer +4
2200
1175-D Array Splitting
greedy sortings
1900
1175-C Electrification
binary search brute force greedy
1600
1175-B Catch Overflow!
data structures expression parsing implementation
1600
1175-A From Hero to Zero
implementation math
900
1174-F Ehab and the Big Finale
constructive algorithms divide and conquer graphs +3
2400
1174-E Ehab and the Expected GCD Problem
combinatorics dp math +1
2500
1174-D Ehab and the Expected XOR Problem
bitmasks constructive algorithms
1900
1174-C Ehab and a Special Coloring Problem
constructive algorithms number theory
1300
1174-B Ehab Is an Odd Person
sortings
1200
1174-A Ehab Fails to Be Thanos
constructive algorithms greedy sortings
1000
1173-B Nauuo and Chess
constructive algorithms greedy
1100
1173-A Nauuo and Votes
greedy
800
1172-F Nauuo and Bug
data structures
3300
1172-E Nauuo and ODT
data structures
3300
1172-D Nauuo and Portals
constructive algorithms
2900
1172-C2 Nauuo and Pictures (hard version)
dp probabilities
2600
1172-C1 Nauuo and Pictures (easy version)
dp probabilities
2300
1172-B Nauuo and Circle
combinatorics dfs and similar dp +1
1900
1172-A Nauuo and Cards
greedy implementation
1800
1170-I Good Subsets
*special dp
1170-H Longest Saw
*special constructive algorithms
1170-G Graph Decomposition
*special graphs
1170-F Wheels
*special binary search greedy
1170-E Sliding Doors
*special binary search
1170-D Decoding of Integer Sequences
*special data structures implementation
1170-C Minus and Minus Give Plus
*special implementation strings
1170-B Bad Days
*special implementation
1170-A Three Integers Again
*special math
1169-B Pairs
graphs implementation
1500
1169-A Circle Metro
implementation math
900
1168-E Xor Permutations
constructive algorithms math
3100
1168-D Anagram Paths
dp implementation trees
3000
1168-C And Reachability
bitmasks dp
2200
1168-B Good Triple
brute force two pointers
1900
1168-A Increasing by Modulo
binary search greedy
1700
1167-G Low Budget Inception
brute force geometry
3100
1167-F Scalar Queries
combinatorics data structures math +1
2300
1167-E Range Deleting
binary search combinatorics data structures +1
2100
1167-D Bicolored RBS
constructive algorithms greedy
1500
1167-C News Distribution
dfs and similar dsu graphs
1400
1167-B Lost Numbers
brute force divide and conquer interactive +1
1400
1167-A Telephone Number
brute force greedy strings
800