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431D
Random Task
binary search
bitmasks
combinatorics
dp
math
+
2100
3k
414B
Mashmokh and ACM
combinatorics
dp
number theory
+
1400
30.4k
403D
Beautiful Pairs of Numbers
combinatorics
dp
+
2300
1.3k
401D
Roman and Numbers
bitmasks
brute force
combinatorics
dp
number theory
+
2000
4.7k
383E
Vowels
combinatorics
divide and conquer
dp
+
2700
4.6k
382E
Ksenia and Combinatorics
combinatorics
dp
+
2600
469
367E
Sereja and Intervals
combinatorics
dp
+
2700
1.4k
360C
Levko and Strings
combinatorics
dp
+
2500
1.3k
351B
Jeff and Furik
combinatorics
dp
probabilities
+
1900
2.8k
336E
Vasily the Bear and Painting Square
bitmasks
combinatorics
dp
implementation
+
2700
158
327E
Axis Walking
bitmasks
combinatorics
constructive algorithms
dp
meet-in-the-middle
+
2300
1.6k
296B
Yaroslav and Two Strings
combinatorics
dp
+
2000
2.8k
295C
Greg and Friends
combinatorics
dp
graphs
shortest paths
+
2100
2k
295D
Greg and Caves
combinatorics
dp
+
2400
764
285D
Permutation Sum
bitmasks
combinatorics
dp
implementation
meet-in-the-middle
+
1900
1.7k
285E
Positions in Permutations
combinatorics
dp
math
+
2600
1.4k
258B
Little Elephant and Elections
brute force
combinatorics
dp
+
1900
1.6k
258C
Little Elephant and LCM
binary search
combinatorics
dp
math
+
2000
2k
235E
Number Challenge
combinatorics
dp
implementation
math
number theory
+
2600
963
232B
Table
bitmasks
combinatorics
dp
math
+
1900
1.7k
229E
Gifts
combinatorics
dp
math
probabilities
+
2600
617
215E
Periodical Numbers
combinatorics
dp
number theory
+
2100
698
213B
Numbers
combinatorics
dp
+
1900
2k
212C
Cowboys
combinatorics
dp
math
+
2100
518
204A
Little Elephant and Interval
binary search
combinatorics
dp
+
1500
6.7k
156C
Cipher
combinatorics
dp
+
2000
2.7k
145C
Lucky Subsequence
combinatorics
dp
math
+
2100
2.2k
140E
New Year Garland
combinatorics
dp
+
2600
1.1k
128C
Games with Rectangle
combinatorics
dp
+
2000
3.3k
123C
Brackets
combinatorics
dp
greedy
+
2300
758
111D
Petya and Coloring
combinatorics
dp
+
2300
939
107B
Basketball Team
combinatorics
dp
math
probabilities
+
1600
4.4k
37D
Lesson Timetable
combinatorics
dp
math
+
2300
584
28C
Bath Queue
combinatorics
dp
probabilities
+
2200
1.3k
15E
Triangles
combinatorics
dp
+
2600
692
9D
How many trees?
combinatorics
divide and conquer
dp
+
1900
4.6k
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