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Simple problem#1

Örän ýeňil · Math

Digits#2

Örän ýeňil · For Beginners

Match’s model#3

Orta · Geometry

Two circles#4

Ýeňil · Geometry · For Beginners

Two factors#5

Orta · Number theory · Prime factorization · Combinatorics

The Vouchers#6

Kyn · Dynamic programming · Brute force

Roman numerals#7

Ýeňil · Strings

Matches#8

Ýeňil · For Beginners

N-digit numbers#9

Örän ýeňil · Brute force

Gardener#10

Ýeňil · Greedy algorithms · Math

Big accuracy#11

Ýeňil · Number theory

Damaged Picture#12

Ýeňil · Geometry

Spider and Fly#13

Ýeňil · Geometry

The Ticket Chase#14

Örän ýeňil · Prime factorization · Brute force

Mouse and corns#15

Orta · Dynamic programming

Dragon#16

Orta · Implementation · Math

Gardener-painter#17

Ýeňil · Combinatorics · Dynamic programming

Paint2D#18

Orta · Dynamic programming

Degree of symmetry#19

Örän ýeňil · Implementation

How many times to repeat?#20

Ýeňil · Implementation

Corruption#21

Ýeňil · Sorting · Greedy algorithms

"Mirror prime" numbers#22

Ýeňil · Brute force

New-year tree#23

Orta · Combinatorics · Math

Paint2D-Crack#24

Kyn · Dynamic programming · Combinatorics · Greedy algorithms

Paint3D#25

Ýeňil · Dynamic programming

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