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34 problems · filtered by 3 tags
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Name
✎
Rating
↕
Solved
↕
2158D
Palindrome Flipping
brute force
constructive algorithms
graphs
implementation
shortest paths
strings
+
2000
3.4k
2144F
Bracket Groups
brute force
constructive algorithms
dp
string suffix structures
strings
+
2700
1.1k
2092D
Mishkin Energizer
brute force
constructive algorithms
greedy
implementation
strings
+
1800
7k
2092F
Andryusha and CCB
brute force
constructive algorithms
greedy
math
number theory
strings
+
2900
438
2065A
Skibidus and Amog'u
brute force
constructive algorithms
greedy
implementation
strings
+
800
56.9k
2059E1
Stop Gaming (Easy Version)
brute force
constructive algorithms
greedy
hashing
strings
+
2500
907
2059E2
Stop Gaming (Hard Version)
brute force
constructive algorithms
data structures
hashing
strings
+
2900
355
1992E
Novice's Mistake
brute force
constructive algorithms
implementation
math
strings
+
1700
11k
1979D
Fixing a Binary String
bitmasks
brute force
constructive algorithms
dp
greedy
hashing
strings
+
1800
8k
1970D1
Arithmancy (Easy)
brute force
constructive algorithms
interactive
strings
+
2100
967
1951E
No Palindromes
brute force
constructive algorithms
divide and conquer
greedy
hashing
implementation
math
strings
+
2000
4.6k
1800E1
Unforgivable Curse (easy version)
brute force
constructive algorithms
dsu
graphs
greedy
strings
+
1400
15.9k
1800E2
Unforgivable Curse (hard version)
brute force
constructive algorithms
dfs and similar
dsu
graphs
greedy
strings
+
1500
15.6k
1781C
Equal Frequencies
brute force
constructive algorithms
greedy
implementation
sortings
strings
+
1600
11k
1691C
Sum of Substrings
brute force
constructive algorithms
greedy
math
strings
+
1400
17.4k
1624E
Masha-forgetful
brute force
constructive algorithms
dp
hashing
implementation
strings
+
2000
4.7k
1555D
Say No to Palindromes
brute force
constructive algorithms
dp
strings
+
1600
16k
1536B
Prinzessin der Verurteilung
brute force
constructive algorithms
strings
+
1200
26.2k
1526D
Kill Anton
brute force
constructive algorithms
data structures
math
strings
+
2200
2.8k
1511D
Min Cost String
brute force
constructive algorithms
graphs
greedy
strings
+
1600
12.6k
1496A
Split it!
brute force
constructive algorithms
greedy
strings
+
900
22.4k
1493C
K-beautiful Strings
binary search
brute force
constructive algorithms
greedy
strings
+
2000
5k
1368B
Codeforces Subsequences
brute force
constructive algorithms
greedy
math
strings
+
1500
21.7k
1360F
Spy-string
bitmasks
brute force
constructive algorithms
dp
hashing
strings
+
1700
13.7k
1321C
Remove Adjacent
brute force
constructive algorithms
greedy
strings
+
1600
10.6k
1316B
String Modification
brute force
constructive algorithms
implementation
sortings
strings
+
1400
11.8k
1304B
Longest Palindrome
brute force
constructive algorithms
greedy
implementation
strings
+
1100
18.9k
1178E
Archaeology
brute force
constructive algorithms
greedy
strings
+
1900
4.5k
798A
Mike and palindrome
brute force
constructive algorithms
strings
+
1000
24.1k
754C
Vladik and chat
brute force
constructive algorithms
dp
implementation
strings
+
2200
1.1k
725C
Hidden Word
brute force
constructive algorithms
implementation
strings
+
1600
3k
670F
Restore a Number
brute force
constructive algorithms
strings
+
2300
940
551B
ZgukistringZ
brute force
constructive algorithms
implementation
strings
+
1800
4.1k
128B
String
brute force
constructive algorithms
hashing
implementation
string suffix structures
strings
+
2100
2.9k
showing 1–34 of 34