Sept. 19, 2020

Decryption

constructive algorithms
math
number theory
implementation

Sept. 14, 2020

Equal Product

two pointers
data structures
math
number theory

Sept. 12, 2020

Deleting Numbers

interactive
number theory
math

Sept. 11, 2020

Zoom Exercises

math
number theory

Sept. 11, 2020

Zoom Exercises

math
number theory

Sept. 8, 2020

Big Vova

math
greedy
number theory
brute force

Sept. 6, 2020

Game of Pairs

interactive
math
constructive algorithms
dfs and similar
number theory

Sept. 4, 2020

Yet Another Array Restoration

math
brute force
number theory

Aug. 30, 2020

Multiples of Length

greedy
number theory
constructive algorithms

Aug. 30, 2020

Power Sequence

brute force
math
number theory
sortings

Aug. 30, 2020

Multiples of Length

greedy
number theory
constructive algorithms
math

Aug. 21, 2020

Cipher count

combinatorics
number theory

Aug. 21, 2020

Dice

combinatorics
number theory

Aug. 21, 2020

Mere Array

constructive algorithms
math
number theory
sortings

Aug. 21, 2020

Maximum Distributed Tree

greedy
number theory
sortings
trees
dfs and similar
dp
implementation
math

Aug. 14, 2020

Running Competition

fft
number theory
math
bitmasks

July 30, 2020

Captain Flint and Crew Recruitment

math
brute force
number theory
greedy

July 29, 2020

LCM Problem

constructive algorithms
math
number theory
greedy

July 29, 2020

Calendar Ambiguity

math
number theory

July 19, 2020

Dubious Cyrpto

math
brute force
binary search
number theory

July 11, 2020

Omkar and Last Class of Math

greedy
math
number theory

July 4, 2020

I. Cubic Lattice

geometry
math
matrices
number theory

July 1, 2020

E1. Asterism (Easy Version)

combinatorics
number theory
sortings
math
binary search
brute force

July 1, 2020

E2. Asterism (Hard Version)

number theory
sortings
binary search
math
combinatorics
dp

June 26, 2020

G. Noogies

number theory
