Contest

Codeforces Round #547 (Div. 3)

A. Game 23
B. Maximal Continuous Rest
C. Polycarp Restores Permutation
D. Colored Boots
E. Superhero Battle
F1. Same Sum Blocks (Easy)
F2. Same Sum Blocks (Hard)
-> 4 / 8 (2019.03.19)

Codeforces Round #548 (Div. 2)

A. Even Substrings
B. Chocoltes
C. Edgy Trees
-> 2 / 6 (2019.03.22)

Codeforces Global Round 2

A. Ilya and a Colorful Walk
B. Alyona and a Narrow Fridge
C. Ramesses and Corner Inversion
D. Frets On Fire
E. Pavel and Triangles
-> 3 / 8 (2019.04.06)

Codeforces Round #552 (Div. 3)

A. Restoring Three Numbers
B. Make Them Equal
C. Gourmet Cat
D. Walking Robot
E. Two Teams (TLE)
-> 4 / 7 (2019.04.16

Codeforces Round #553 (Div. 2)

A. Maxim and Biology
B. Dima and a Bad XOR
C. Problem for Nazar
D. Stas and the Queue at the Buffet
-> 3 / 6 (2019.04.18)

Educational Codeforces Round 63 (Rated for Div. 2)

A. Reverse a Substring
B. Game with Telephone Numbers
C. Alarm Clocks Everywhere
D. Beautiful Array
-> 3 / 6 (2019.04.22)

Codeforces Round #554 (Div. 2)

A. Neko Finds Grapes
B. Neko Performs Cat Furrier Transform
C. Neko does Maths
D. Neko and Aki's Prank (TLE)
-> 2 / 7 (2019.04.24)

Codeforces Round #555 (Div. 3)

A. Reachable Numbers
B. Long Number
C1. Increasing Subsequence (easy version)
C2. Increasing Subsequence (hard version)
D. N Problems During K Days
E. Minimum Array (TLE)
-> 4 / 8 (2019.04.27)

Codeforces Round #556 (Div. 2)

A. Stock Arbitraging
B. Tiling Challenge
C. Prefix Sum Primes
D. Three Religions (maximum recursion depth exceeded)
-> 3 / 5 (2019.04.29)

Educational Codeforces Round 64 (Rated for Div. 2)

A. Inscribed Figures
B. Ugly Pairs
C. Match Points
-> 2 / 7 (2019.05.01)

Codeforces Round #558 (Div. 2)

A. Eating Soup
B1. Cat Party (Easy Edition)
C1. Power Transmission (Easy Edition)
C2. Power Transmission (Hard Edition)
-> 2 / 8 (2019.05.10)

Codeforces Round #560 (Div. 3)

A. Remainder
B. Polycarp Training
C. Good String
D. Almost All Divisors
E. Two Arrays and Sum of Functions
-> 4 / 7 (2019.05.14)

Educational Codeforces Round 65 (Rated for Div. 2)

A. Telephone Number
B. Lost Numbers
C. News Distribution
D. Bicolored RBS
-> 4 / 7 (2019.05.15)

Codeforces Round #561 (Div. 2)

A. Silent Classroom
B. All the Vowels Please
C. A Tale of Two Lands
-> 3 / 6 (2019.05.18)

Practice

Codeforces Round #544 (Div. 3)

A. Middle of the Contest
B. Preparation for International Women's Day
C. Balanced Team
D. Zero Quantity Maximization
F1. Spanning Tree with Maximum Degree

Codeforces Round #540 (Div. 3)

A. Water Buying
B. Tanya and Candies
C. Palindromic Matrix
D1. Coffee and Coursework (Easy) *
D2. Coffee and Coursework (Hard)
E. Yet Another Ball Problem
F1. Tree Cutting (Easy) - Python X

Codeforces Round #535 (Div. 3)

A. Two distinct points
B. Divisors of Two Integers
C. Nice Garland
D. Diverse Garland
E1. Array and Segments (Easy)

Codeforces Round #550 (Div. 3)

A. Diverse Strings
B. Parity Alternated Deletions
C. Two Shuffled Sequences
D. Equalize Them All
E. Median String
F. Graph Without Long Directed Paths

Codeforces Round #531 (Div. 3)

A. Integer Sequence Dividing
B. Array K-Coloring
C. Doors Breaking and Repairing
D. Balanced Ternary String

Codeforces Round #559 (Div. 2)

A. A pile of stones
B. Expansion coefficient of the array
C. The Party and Sweets

Codeforces Round #557 (Div. 2) [based on Forethought Future Cup - Final Round]

A. Zoning Restrictions Again
B. Double Matrix
C. Hide and Seek

Codeforces Round #551 (Div. 2)

A. Serval and Bus
B. Serval and Toy Bricks
C. Serval and Parenthesis Sequence
D. Serval and Rooted Tree