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Count frequencies of negative elements in matrix

Given a matrix of integer elements, Our goal is to find the frequency of negative element which is exist in given matrix.

Counting negative numbers in matrix 
/*
  Java Program
  Count number of negative elements in matrix
*/
public class Test
{
    // Display matrix elements
    public void showData(int[][] matrix)
    {
        // Get the size of matrix
        int row = matrix.length;
        int col = matrix[0].length;
        // This loop is iterating rows
        for (int i = 0; i < row; ++i)
        {
            // This loop is iterating cols
            for (int j = 0; j < col; ++j)
            {
                // Display array element
                System.out.print("  " + matrix[i][j]);
            }
            // Include new line
            System.out.print("\n");
        }
        // Include new line
        System.out.print("\n");
    }
    // Count frequencies of negative element
    public void frequencies(int[][] matrix)
    {
        // Get the size of matrix
        int row = matrix.length;
        int col = matrix[0].length;
        // Counter
        int negative = 0;
        // This loop is iterating rows
        for (int i = 0; i < row; ++i)
        {
            // This loop is iterating cols
            for (int j = 0; j < col; ++j)
            {
                if (matrix[i][j] < 0)
                {
                    // When get new negative element
                    negative++;
                }
            }
        }
        // Display result
        System.out.println(" Total Negative : " + negative);
    }
    public static void main(String[] args)
    {
        Test task = new Test();
        // Define matrix 
        int[][] matrix = {
          { 1, 2, -3, -4, 5 }, 
          { 4, 5, 6 , 11 , -12 }, 
          {-7, 8, -9 ,13, 14} 
        };
        task.showData(matrix);
        task.frequencies(matrix);
    }
}

Output

  1  2  -3  -4  5
  4  5  6  11  -12
  -7  8  -9  13  14

 Total Negative : 5
package main
import "fmt"
/*
  Go Program
  Count number of negative elements in matrix
*/
type Test struct {}
func getTest() * Test {
  var me *Test = &Test {}
  return me
}
// Display matrix elements
func(this Test) showData(matrix[][] int) {
  // Get the size of matrix
  var row int = len(matrix)
  var col int = len(matrix[0])
  // This loop is iterating rows
  for i := 0 ; i < row ; i++ {
    // This loop is iterating cols
    for j := 0 ; j < col ; j++ {
      // Display array element
      fmt.Print("  ", matrix[i][j])
    }
    // Include new line
    fmt.Print("\n")
  }
  // Include new line
  fmt.Print("\n")
}
// Count frequencies of negative element
func(this Test) frequencies(matrix[][] int) {
  // Get the size of matrix
  var row int = len(matrix)
  var col int = len(matrix[0])
  // Counter
  var negative int = 0
  // This loop is iterating rows
  for i := 0 ; i < row ; i++ {
    // This loop is iterating cols
    for j := 0 ; j < col ; j++ {
      if matrix[i][j] < 0 {
        // When get new negative element
        negative++
      }
    }
  }
  // Display result
  fmt.Println(" Total Negative : ", negative)
}
func main() {
  var task * Test = getTest()
  // Define matrix 
  var matrix = [][] int {
    { 1, 2, -3, -4, 5 }, 
      { 4, 5, 6 , 11 , -12 }, 
      {-7, 8, -9 ,13, 14}, 
  }
  task.showData(matrix)
  task.frequencies(matrix)
}

Output

  1  2  -3  -4  5
  4  5  6  11  -12
  -7  8  -9  13  14

 Total Negative : 5
// Include header file
#include <iostream>
#include <vector>
using namespace std;
/*
  C++ Program
  Count number of negative elements in matrix
*/
class Test
{
  public:
    // Display matrix elements
    void showData(vector<vector<int>> matrix)
    {
      // Get the size of matrix
            int row = matrix.size();
            int col = matrix[0].size();
      // This loop is iterating rows
      for (int i = 0; i < row; ++i)
      {
        // This loop is iterating cols
        for (int j = 0; j < col; ++j)
        {
          // Display array element
          cout << "  " << matrix[i][j];
        }
        // Include new line
        cout << "\n";
      }
      // Include new line
      cout << "\n";
    }
  // Count frequencies of negative element
  void frequencies(vector<vector<int>> matrix)
  {
    // Get the size of matrix
        int row = matrix.size();
        int col = matrix[0].size();
    // Counter
    int negative = 0;
    // This loop is iterating rows
    for (int i = 0; i < row; ++i)
    {
      // This loop is iterating cols
      for (int j = 0; j < col; ++j)
      {
        if (matrix[i][j] < 0)
        {
          // When get new negative element
          negative++;
        }
      }
    }
    // Display result
    cout << " Total Negative : " << negative << endl;
  }
};
int main()
{
  Test *task = new Test();
  // Define matrix 
  vector<vector<int>> matrix {
    {
      1 , 2 , -3 , -4 , 5
    } , {
      4 , 5 , 6 , 11 , -12
    } , {
      -7 , 8 , -9 , 13 , 14
    }
  };
  task->showData(matrix);
  task->frequencies(matrix);
  return 0;
}

Output

  1  2  -3  -4  5
  4  5  6  11  -12
  -7  8  -9  13  14

 Total Negative : 5
/*
  C Program 
  Count number of negative elements in matrix
*/
#include <stdio.h>
#define ROW 3
#define COL 5

// Display matrix elements
void show_data(int matrix[][COL])
{
    // This loop is iterating rows
    for (int i = 0; i < ROW; ++i)
    {
        // This loop is iterating cols
        for (int j = 0; j < COL; ++j)
        {
            // Display array element
            printf("%3d", matrix[i][j]);
        }
        // Include new line
        printf("\n");
    }
    // Include new line
    printf("\n");
}
// Count frequencies of negative element
void frequencies(int matrix[ROW][COL])
{
    int negative = 0;
    // This loop is iterating rows
    for (int i = 0; i < ROW; ++i)
    {
        // This loop is iterating cols
        for (int j = 0; j < COL; ++j)
        {
            if (matrix[i][j] < 0)
            {
                // When get new negative element
                negative++;
            }
        }
    }
    // Display result
    printf(" Total Negative : %d\n", negative);
}
int main()
{
    // Matrix of integer elements
    int matrix[ROW][COL] = {
        {
            1 , 2 , -3 , -4 , 5
        },
        {
            4 , 5 , 6 , 11 , -12
        },
        {
            -7 , 8 , -9 , 13 , 14
        }
    };
    show_data(matrix);
    frequencies(matrix);
    return 0;
}

Output

  1  2 -3 -4  5
  4  5  6 11-12
 -7  8 -9 13 14

 Total Negative : 5
// Include namespace system
using System;
/*
  Csharp Program
  Count number of negative elements in matrix
*/
public class Test
{
  // Display matrix elements
  public void showData(int[,] matrix)
  {
    // Get the size of matrix
        int row = matrix.GetLength(0);
        int col = matrix.GetLength(1);
    // This loop is iterating rows
    for (int i = 0; i < row; ++i)
    {
      // This loop is iterating cols
      for (int j = 0; j < col; ++j)
      {
        // Display array element
        Console.Write("  " + matrix[i,j]);
      }
      // Include new line
      Console.Write("\n");
    }
    // Include new line
    Console.Write("\n");
  }
  // Count frequencies of negative element
  public void frequencies(int[,] matrix)
  {
    // Get the size of matrix
        int row = matrix.GetLength(0);
        int col = matrix.GetLength(1);
    // Counter
    int negative = 0;
    // This loop is iterating rows
    for (int i = 0; i < row; ++i)
    {
      // This loop is iterating cols
      for (int j = 0; j < col; ++j)
      {
        if (matrix[i,j] < 0)
        {
          // When get new negative element
          negative++;
        }
      }
    }
    // Display result
    Console.WriteLine(" Total Negative : " + negative);
  }
  public static void Main(String[] args)
  {
    Test task = new Test();
    // Define matrix 
    int[,] matrix = {
      {
        1 , 2 , -3 , -4 , 5
      },
      {
        4 , 5 , 6 , 11 , -12
      },
      {
        -7 , 8 , -9 , 13 , 14
      }
    };
    task.showData(matrix);
    task.frequencies(matrix);
  }
}

Output

  1  2  -3  -4  5
  4  5  6  11  -12
  -7  8  -9  13  14

 Total Negative : 5
<?php
/*
  Php Program
  Count number of negative elements in matrix
*/
class Test
{
  // Display matrix elements
  public  function showData($matrix)
  {
    // Get the size of matrix
    $row = count($matrix);
    $col = count($matrix[0]);
    // This loop is iterating rows
    for ($i = 0; $i < $row; ++$i)
    {
      // This loop is iterating cols
      for ($j = 0; $j < $col; ++$j)
      {
        // Display array element
        echo("  ".$matrix[$i][$j]);
      }
      // Include new line
      echo("\n");
    }
    // Include new line
    echo("\n");
  }
  // Count frequencies of negative element
  public  function frequencies($matrix)
  {
    // Get the size of matrix
    $row = count($matrix);
    $col = count($matrix[0]);
    // Counter
    $negative = 0;
    // This loop is iterating rows
    for ($i = 0; $i < $row; ++$i)
    {
      // This loop is iterating cols
      for ($j = 0; $j < $col; ++$j)
      {
        if ($matrix[$i][$j] < 0)
        {
          // When get new negative element
          $negative++;
        }
      }
    }
    // Display result
    echo(" Total Negative : ".$negative."\n");
  }
}

function main()
{
  $task = new Test();
  // Define matrix 
  $matrix = array(
      array(1, 2, -3, -4, 5), 
      array(4, 5, 6, 11, -12), 
      array(-7, 8, -9, 13, 14)
    );
  $task->showData($matrix);
  $task->frequencies($matrix);
}
main();

Output

  1  2  -3  -4  5
  4  5  6  11  -12
  -7  8  -9  13  14

 Total Negative : 5
/*
  Node JS Program
  Count number of negative elements in matrix
*/
class Test
{
  // Display matrix elements
  showData(matrix)
  {
    // Get the size of matrix
    var row = matrix.length;
    var col = matrix[0].length;
    // This loop is iterating rows
    for (var i = 0; i < row; ++i)
    {
      // This loop is iterating cols
      for (var j = 0; j < col; ++j)
      {
        // Display array element
        process.stdout.write("  " + matrix[i][j]);
      }
      // Include new line
      process.stdout.write("\n");
    }
    // Include new line
    process.stdout.write("\n");
  }
  // Count frequencies of negative element
  frequencies(matrix)
  {
    // Get the size of matrix
    var row = matrix.length;
    var col = matrix[0].length;
    // Counter
    var negative = 0;
    // This loop is iterating rows
    for (var i = 0; i < row; ++i)
    {
      // This loop is iterating cols
      for (var j = 0; j < col; ++j)
      {
        if (matrix[i][j] < 0)
        {
          // When get new negative element
          negative++;
        }
      }
    }
    // Display result
    console.log(" Total Negative : " + negative);
  }
}

function main()
{
  var task = new Test();
  // Define matrix 
  var matrix = [
    [1, 2, -3, -4, 5],
    [4, 5, 6, 11, -12],
    [-7, 8, -9, 13, 14]
  ];
  task.showData(matrix);
  task.frequencies(matrix);
}
main();

Output

  1  2  -3  -4  5
  4  5  6  11  -12
  -7  8  -9  13  14

 Total Negative : 5
#  Python 3 Program
#  Count number of negative elements in matrix
class Test :
  #  Display matrix elements
  def showData(self, matrix) :
    #  Get the size of matrix
    row = len(matrix)
    col = len(matrix[0])
    i = 0
    #  This loop is iterating rows
    while (i < row) :
      j = 0
      #  This loop is iterating cols
      while (j < col) :
        #  Display list element
        print("  ", matrix[i][j], end = "")
        j += 1
      
      #  Include new line
      print(end = "\n")
      i += 1
    
    #  Include new line
    print(end = "\n")
  
  #  Count frequencies of negative element
  def frequencies(self, matrix) :
    #  Get the size of matrix
    row = len(matrix)
    col = len(matrix[0])
    #  Counter
    negative = 0
    i = 0
    #  This loop is iterating rows
    while (i < row) :
      j = 0
      #  This loop is iterating cols
      while (j < col) :
        if (matrix[i][j] < 0) :
          #  When get new negative element
          negative += 1
        
        j += 1
      
      i += 1
    
    #  Display result
    print(" Total Negative : ", negative)
  

def main() :
  task = Test()
  #  Define matrix 
  matrix = [
    [1, 2, -3, -4, 5],
    [4, 5, 6, 11, -12],
    [-7, 8, -9, 13, 14]
  ]
  task.showData(matrix)
  task.frequencies(matrix)

if __name__ == "__main__": main()

Output

   1   2   -3   -4   5
   4   5   6   11   -12
   -7   8   -9   13   14

 Total Negative :  5
#  Ruby Program
#  Count number of negative elements in matrix
class Test 
  #  Display matrix elements
  def showData(matrix) 
    #  Get the size of matrix
    row = matrix.length
    col = matrix[0].length
    i = 0
    #  This loop is iterating rows
    while (i < row) 
      j = 0
      #  This loop is iterating cols
      while (j < col) 
        #  Display array element
        print("  ", matrix[i][j])
        j += 1
      end

      #  Include new line
      print("\n")
      i += 1
    end

    #  Include new line
    print("\n")
  end

  #  Count frequencies of negative element
  def frequencies(matrix) 
    #  Get the size of matrix
    row = matrix.length
    col = matrix[0].length
    #  Counter
    negative = 0
    i = 0
    #  This loop is iterating rows
    while (i < row) 
      j = 0
      #  This loop is iterating cols
      while (j < col) 
        if (matrix[i][j] < 0) 
          #  When get new negative element
          negative += 1
        end

        j += 1
      end

      i += 1
    end

    #  Display result
    print(" Total Negative : ", negative, "\n")
  end

end

def main() 
  task = Test.new()
  #  Define matrix 
  matrix = [
    [1, 2, -3, -4, 5],
    [4, 5, 6, 11, -12],
    [-7, 8, -9, 13, 14]
  ]
  task.showData(matrix)
  task.frequencies(matrix)
end

main()

Output

  1  2  -3  -4  5
  4  5  6  11  -12
  -7  8  -9  13  14

 Total Negative : 5

/*
  Scala Program
  Count number of negative elements in matrix
*/
class Test()
{
  // Display matrix elements
  def showData(matrix: Array[Array[Int]]): Unit = {
    // Get the size of matrix
    var row: Int = matrix.length;
    var col: Int = matrix(0).length;
    var i: Int = 0;
    // This loop is iterating rows
    while (i < row)
    {
      var j: Int = 0;
      // This loop is iterating cols
      while (j < col)
      {
        // Display array element
        print("  " + matrix(i)(j));
        j += 1;
      }
      // Include new line
      print("\n");
      i += 1;
    }
    // Include new line
    print("\n");
  }
  // Count frequencies of negative element
  def frequencies(matrix: Array[Array[Int]]): Unit = {
    // Get the size of matrix
    var row: Int = matrix.length;
    var col: Int = matrix(0).length;
    // Counter
    var negative: Int = 0;
    var i: Int = 0;
    // This loop is iterating rows
    while (i < row)
    {
      var j: Int = 0;
      // This loop is iterating cols
      while (j < col)
      {
        if (matrix(i)(j) < 0)
        {
          // When get new negative element
          negative += 1;
        }
        j += 1;
      }
      i += 1;
    }
    // Display result
    println(" Total Negative : " + negative);
  }
}
object Main
{
  def main(args: Array[String]): Unit = {
    var task: Test = new Test();
    // Define matrix 
    var matrix: Array[Array[Int]] = Array(
          Array(1, 2, -3, -4, 5), 
          Array(4, 5, 6, 11, -12), 
          Array(-7, 8, -9, 13, 14)
        );
    task.showData(matrix);
    task.frequencies(matrix);
  }
}

Output

  1  2  -3  -4  5
  4  5  6  11  -12
  -7  8  -9  13  14

 Total Negative : 5
import Foundation;
/*
  Swift 4 Program
  Count number of negative elements in matrix
*/
class Test
{
  // Display matrix elements
  func showData(_ matrix: [[Int]])
  {
    // Get the size of matrix
    let row: Int = matrix.count;
    let col: Int = matrix[0].count;
    var i: Int = 0;
    // This loop is iterating rows
    while (i < row)
    {
      var j: Int = 0;
      // This loop is iterating cols
      while (j < col)
      {
        // Display array element
        print("  ", matrix[i][j], terminator: "");
        j += 1;
      }
      // Include new line
      print(terminator: "\n");
      i += 1;
    }
    // Include new line
    print(terminator: "\n");
  }
  // Count frequencies of negative element
  func frequencies(_ matrix: [
    [Int]
  ])
  {
    // Get the size of matrix
    let row: Int = matrix.count;
    let col: Int = matrix[0].count;
    // Counter
    var negative: Int = 0;
    var i: Int = 0;
    // This loop is iterating rows
    while (i < row)
    {
      var j: Int = 0;
      // This loop is iterating cols
      while (j < col)
      {
        if (matrix[i][j] < 0)
        {
          // When get new negative element
          negative += 1;
        }
        j += 1;
      }
      i += 1;
    }
    // Display result
    print(" Total Negative : ", negative);
  }
}
func main()
{
  let task: Test = Test();
  // Define matrix 
  let matrix: [[Int]] = [
    [1, 2, -3, -4, 5],
    [4, 5, 6, 11, -12],
    [-7, 8, -9, 13, 14]
  ];
  task.showData(matrix);
  task.frequencies(matrix);
}
main();

Output

   1   2   -3   -4   5
   4   5   6   11   -12
   -7   8   -9   13   14

 Total Negative :  5
/*
  Kotlin Program
  Count number of negative elements in matrix
*/
class Test
{
  // Display matrix elements
  fun showData(matrix: Array < Array < Int >> ): Unit
  {
    // Get the size of matrix
    val row: Int = matrix.count();
    val col: Int = matrix[0].count();
    var i: Int = 0;
    // This loop is iterating rows
    while (i < row)
    {
      var j: Int = 0;
      // This loop is iterating cols
      while (j < col)
      {
        // Display array element
        print("  " + matrix[i][j]);
        j += 1;
      }
      // Include new line
      print("\n");
      i += 1;
    }
    // Include new line
    print("\n");
  }
  // Count frequencies of negative element
  fun frequencies(matrix: Array < Array < Int >> ): Unit
  {
    // Get the size of matrix
    val row: Int = matrix.count();
    val col: Int = matrix[0].count();
    // Counter
    var negative: Int = 0;
    var i: Int = 0;
    // This loop is iterating rows
    while (i < row)
    {
      var j: Int = 0;
      // This loop is iterating cols
      while (j < col)
      {
        if (matrix[i][j] < 0)
        {
          // When get new negative element
          negative += 1;
        }
        j += 1;
      }
      i += 1;
    }
    // Display result
    println(" Total Negative : " + negative);
  }
}
fun main(args: Array < String > ): Unit
{
  val task: Test = Test();
  // Define matrix 
  val matrix: Array < Array < Int >> = arrayOf(
      arrayOf(1, 2, -3, -4, 5), 
      arrayOf(4, 5, 6, 11, -12), 
      arrayOf(-7, 8, -9, 13, 14)
    );
  task.showData(matrix);
  task.frequencies(matrix);
}

Output

  1  2  -3  -4  5
  4  5  6  11  -12
  -7  8  -9  13  14

 Total Negative : 5
Last updated on by Kalkicode




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