Задачи
Sum of squares#5897
Средно · Math
How many multiples#5898
Лесно · Math
Multiplication#5899
Трудно · Implementation
Multifactorial#5900
Лесно · Dynamic programming
Discrete Fourier Transform#5901
Лесно · Fast Fourier transform · Implementation
Reverse order#5902
Много лесно · Binary Search
Distinct Sums#5903
Лесно · Brute force · Prefix Sums
Multifactorial - 2#5904
Много лесно · Math · Implementation
Roots from one#5905
Много лесно · Math
Discrete Fourier Transform - 2#5906
Средно · Fast Fourier transform · Math
Square root#5907
Лесно · Implementation
Dictionary search#5908
Трудно · Strings · Prefix Function
Fibonacci Strings#5909
Средно · Strings · Dynamic programming
Isomorphisms#5910
Трудно · Hashing · Strings
Palindrome row#5911
Лесно · Combinatorics
Suffix Game#5912
Лесно · Strings
Number of Distinct Substrings#5913
Трудно · String suffix structures · Suffix Array
Suffix tree in line#5914
Лесно · Suffix Array
Vertices of the implicit suffix tree#5915
Лесно · Strings
Suffixes of one string#5916
Много лесно · Strings
Zebra - also a horse#5917
Много лесно · Strings
Happy Sum 3#5918
Лесно · Dynamic programming
Fibonacci haters' nim 2. Peter strikes back!#5919
Много трудно · Games · Dynamic programming · Prefix Sums · Bitwise Operations
Mr. Chudakov's Buses#5920
Много лесно · Graphs · Dynamic programming
Word number#5921
Лесно · Brute force · Strings