Nikolai

E-mail

Company/University

SPbSPU

Personal Profile

PhD student in Fiber Optics

Professional Interests

Fiber optics, signal processing, raman spectroscopy

Rank 18
Score 2260
220 problems solved 4 problems created 1 problem liked 0 solutions liked
97Solvers

All capital?

Created by Amitava Biswas

Tags

string

Problem Group

Community
  • Solved
16Solvers

Find Rotated Substring

Created by Roy Mathew

Tags

strings

Problem Group

Community
  • Solved
37Solvers

sorting

Created by Yvan Lengwiler

Tags

sorting

Problem Group

Community
  • Solved
21Solvers

Return the Fibonacci Sequence

Created by Matt Fig

Tags

fibonacci

Problem Group

Community
  • Solved
10Solvers

Surface Fit z(x,y)

Created by Amitava Biswas

Tags

2d, surface, quadratic, fit, polynomial

Problem Group

Community
  • Solved
12Solvers

ranch area?

Created by Amitava Biswas

Tags

area

Problem Group

Community
  • Solved
30Solvers

This problem is locked. You need to solve more problems from Cody Challenge group to unlock it.

  • Solved
44Solvers

Check to see if a Sudoku Puzzle is Solved

Created by @bmtran

Tags

solve, sudoku, logic

Problem Group

Community
  • Solved
71Solvers

Solve the Sudoku Row

Created by @bmtran

Tags

solve, sudoku, logic

Problem Group

Community
  • Solved
12Solvers

Convert String to Morse Code

Created by NeoGenesis

Tags

coding, conversion, neogenesis, strings

Problem Group

Community
  • Solved
46Solvers

This problem is locked. You need to solve more problems from Cody Challenge group to unlock it.

  • Solved
10Solvers

Acidity of vinegar and salts

Created by Amitava Biswas

Tags

medical, chemistry

Problem Group

Community
  • Solved
9Solvers

Covering area

Created by Nikolai

Tags

triangulation, geometrics, area

Problem Group

Community
  • Solved
89Solvers

This problem is locked. You need to solve more problems from Cody Challenge group to unlock it.

  • Solved
41Solvers

No Twins?

Created by Julio

Tags

vector

Problem Group

Community
  • Solved
41Solvers

Who knows the last digit of pi?

Created by Bart

Tags

cody meets chuck norris

Problem Group

Community
  • Solved
13Solvers

Wilf-Zeilberger pairs

Created by the cyclist

Tags

wilf zeilberger wilf-zeilberger

Problem Group

Community
  • Solved
13Solvers

Maintain shape of logical-index mask

Created by the cyclist

Tags

logical indexing

Problem Group

Community
  • Solved
12Solvers

Clockwise or Counterclockwise

Created by Alfonso Nieto-Castanon

Tags

polygon, math

Problem Group

Community
  • Solved
13Solvers

Dancing with wolves?

Created by Amitava Biswas

Tags

dance

Problem Group

Community
  • Solved
10Solvers

Clock Hand Angle 1

Created by @bmtran

Tags

fractions, degrees, clocks, math

Problem Group

Community
  • Solved
16Solvers

Einsteinium-253 decay

Created by Bruce Raine

Tags

natural log, half-life, isotope, radioactive decay

Problem Group

Community
  • Solved
27Solvers

Reverse the Words (not letters) of a String

Created by @bmtran

Tags

regexp

Problem Group

Community
  • Solved
17Solvers

commutative?

Created by Amitava Biswas

Tags

function

Problem Group

Community
  • Solved
27Solvers

Triangle Numbers Below N

Created by @bmtran

Tags

below, numbers, triangle

Problem Group

Community
  • Solved
68Solvers

This problem is locked. You need to solve more problems from Cody Challenge group to unlock it.

  • Solved
36Solvers

Back to basics 23 - Triangular matrix

Created by Alan Chalker

Tags

matrices

Problem Group

Community
  • Solved
52Solvers

Back to basics 22 - Rotate a matrix

Created by Alan Chalker

Tags

matrices

Problem Group

Community
  • Solved
30Solvers

Back to basics 21 - Matrix replicating

Created by Alan Chalker

Tags

matrices

Problem Group

Community
  • Solved
20Solvers

Back to basics 19 - character types

Created by Alan Chalker

Tags

strings

Problem Group

Community
  • Solved
19Solvers

Back to basics 18 - justification

Created by Alan Chalker

Tags

justification, strings

Problem Group

Community
  • Solved
35Solvers

Back to basics 17 - white space

Created by Alan Chalker

Tags

white spaces

Problem Group

Community
  • Solved
27Solvers

Back to basics 16 - byte order

Created by Alan Chalker

Tags

byte order

Problem Group

Community
  • Solved
29Solvers

Back to basics 15 - classes

Created by Alan Chalker

Tags

classes

Problem Group

Community
  • Solved
17Solvers

7 segment LED display

Created by Alan Chalker

Tags

number representations

Problem Group

Community
  • Solved
23Solvers

Circumscribed circles

Created by Alan Chalker

Tags

geometry

Problem Group

Community
  • Solved
40Solvers

Back to basics 20 - singleton dimensions

Created by Alan Chalker

Tags

dimensions

Problem Group

Community
  • Solved
33Solvers

Angle between two vectors

Created by Aurelien Queffurust

Tags

angle

Problem Group

Community
  • Solved
60Solvers

give nth decimal place of pi

Created by Amitava Biswas

Tags

pi

Problem Group

Community
  • Solved
59Solvers

This problem is locked. You need to solve more problems from Cody Challenge group to unlock it.

  • Solved
45Solvers

This problem is locked. You need to solve more problems from Cody Challenge group to unlock it.

  • Solved
22Solvers

peta to nano (x-ray)

Created by Amitava Biswas

Tags

physics

Problem Group

Community
  • Solved
48Solvers

Back to basics 14 - Keywords

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
  • Solved
43Solvers

Back to basics 12 - Input Arguments

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
  • Solved
58Solvers

Back to basics 11 - Max Integer

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
  • Solved
48Solvers

Back to basics 10 - Max Float

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
  • Solved