Spiral Matrix

76

Spiral Matrix - 

IList<int> PrintSpiralOrder(int[][] matrix)
{
  int hStart = 0;
  int hEnd = matrix[0].Length;
  int vEnd = matrix.Length;

  List<int> ans = new List<int>();

  while (hStart < hEnd && hStart < vEnd)
  {
    for (int i = hStart; i < hEnd; i++)
      ans.Add(matrix[hStart][i]);

    for (int j = hStart + 1; j < vEnd; j++)
      ans.Add(matrix[j][hEnd - 1]);

    if (hStart < vEnd - 1)
      for (int k = hEnd - 2; k >= hStart; k--)
        ans.Add(matrix[vEnd - 1][k]);

    if (hStart < hEnd - 1)
      for (int l = vEnd - 2; l >= hStart + 1; l--)//1>
        ans.Add(matrix[l][hStart]);

    hStart++;
    hEnd--;
    vEnd--;
  }

  return ans;
}

spiral matrix - 

4
1 2 3 4 
5 6 7 8 
9 10 11 12
13 14 15 16

Comments

Submit
0 Comments

More Questions

url()- full() laravelhow to print in c# c# how to sort a list
print in c#get mouse position unity c# initialize array
string to int c#Retrieve url path Generate Random String
string to date vbmodal bootstrap style abril modal boostrap
c# serialize jsonboostrap 4 modal small modal popup bootstrap
model in bootsrap 4bootstrap modal popup c# random string
c sharp split stringstring to json c# laravel get current url
how get url in laravelhow to generate random letters in C# string to date
laravel route redirectcheck if two date ranges overlap c# Console.WriteLine($Hello Ana.ToUpper($)!);
phone number regex in c#list min and Max value in c# check shell command success
attribute c# get method name reflectionc# how to get screen resolution in class how to make dissapear an object in unity
wpf label text in centerhahhaa i hack u difference between all logging framework .NET Core
new color unityc# count files in directory and subdirectories Hello World Dotnet
import tachyons in reactHow can I cast string to enum .net core add header to soap request
open html file in browser using c++git find commits by message c# generate random date
how to get angular on visual studio macdotnet core encryption and decryption asp.net list all files in folder
C
CSS
Objective-C
PHP
Java
C++
Javascript
Html
Python
SQL
Swift
Ruby
Go
R
TypeScript
Kotlin
Assembly
VBA
Scala
Rust
Elixir
Dart
Haskell
Perl
Fortran
Matlab
Scheme
Julia
Lua
Delphi
Pascal
Solidity
BASIC
ActionScript
Csharp