Sum of all even frequency elements in matrix
Here given code implementation process.
// Java Program
// Sum of all even frequency elements in matrix
import java.util.HashMap;
public class Frequency
{
public void evenFrequencySum(int [][]matrix)
{
// Get the length
int r = matrix.length;
int c = matrix[0].length;
// Use to count frequency
HashMap < Integer, Integer > record = new HashMap < Integer, Integer > ();
// Execute loop through by matrix row
for (int i = 0; i < r ;i++ )
{
// Execute loop through by matrix column
for (int j = 0; j < c ; ++j )
{
if (record.containsKey(matrix[i][j]))
{
// increase element frequency
record.put(matrix[i][j], record.get(matrix[i][j]) + 1);
}
else
{
// Add new element
record.put(matrix[i][j], 1);
}
}
}
int sum = 0;
for (int key: record.keySet())
{
if(record.get(key) % 2 == 0)
{
// Sum all even occurring elements
sum += key*record.get(key);
}
}
// Display calculated result
System.out.print(" Result "+sum);
}
public static void main(String[] args)
{
Frequency task = new Frequency();
int [][]matrix =
{
{1, 7, 4, 6, 5},
{8, 9, 4, 5, 1},
{6, 2, 1, 9, -2},
{9, 2, 1, -2, 6},
};
// Even Frequency
// (1 + 1 + 1 + 1) + (2 + 2) + (-2 + -2)
// ( 5 + 5) + ( 4 + 4 )
task.evenFrequencySum(matrix);
}
}
Output
Result 22
// Include header file
#include <iostream>
#include <unordered_map>
using namespace std;
#define R 4
#define C 5
// C++ Program
// Sum of all even frequency elements in matrix
class Frequency
{
public: void evenFrequencySum(int matrix[R][C])
{
// Use to count frequency
unordered_map < int, int > record ;
// Execute loop through by matrix row
for (int i = 0; i < R; i++)
{
// Execute loop through by matrix column
for (int j = 0; j < C; ++j)
{
if (record.find(matrix[i][j]) != record.end())
{
// increase element frequency
record[matrix[i][j]] = record[matrix[i][j]] + 1;
}
else
{
// Add new element
record[matrix[i][j]] = 1;
}
}
}
int sum = 0;
for (auto &data: record)
{
if ((data.second % 2) == 0)
{
// Sum all even occurring elements
sum += data.second * data.first;
}
}
cout << " Result " << sum;
}
};
int main()
{
Frequency task = Frequency();
int matrix[R][C] = {
{
1 , 7 , 4 , 6 , 5
} , {
8 , 9 , 4 , 5 , 1
} , {
6 , 2 , 1 , 9 , -2
} , {
9 , 2 , 1 , -2 , 6
}
};
// Even Frequency
// (1 + 1 + 1 + 1) + (2 + 2) + (-2 + -2)
// ( 5 + 5) + ( 4 + 4 )
task.evenFrequencySum(matrix);
return 0;
}
Output
Result 22
// Include namespace system
using System;
using System.Collections.Generic;
// C# Program
// Sum of all even frequency elements in matrix
public class Frequency
{
public void evenFrequencySum(int[,] matrix)
{
// Get the length
int r = matrix.GetLength(0);
int c = matrix.GetLength(1);
// Use to count frequency
Dictionary < int, int > record = new Dictionary < int, int > ();
// Execute loop through by matrix row
for (int i = 0; i < r; i++)
{
// Execute loop through by matrix column
for (int j = 0; j < c; ++j)
{
if (record.ContainsKey(matrix[i,j]))
{
// increase element frequency
record[matrix[i,j]] = record[matrix[i,j]] + 1;
}
else
{
// Add new element
record.Add(matrix[i,j], 1);
}
}
}
int sum = 0;
foreach(KeyValuePair < int, int > data in record)
{
if (data.Value % 2 == 0)
{
// Sum all even occurring elements
sum += data.Key * data.Value;
}
}
// Display calculated result
Console.Write(" Result " + sum);
}
public static void Main(String[] args)
{
Frequency task = new Frequency();
int[,] matrix = {
{
1 , 7 , 4 , 6 , 5
} , {
8 , 9 , 4 , 5 , 1
} , {
6 , 2 , 1 , 9 , -2
} , {
9 , 2 , 1 , -2 , 6
}
};
// Even Frequency
// (1 + 1 + 1 + 1) + (2 + 2) + (-2 + -2)
// ( 5 + 5) + ( 4 + 4 )
task.evenFrequencySum(matrix);
}
}
Output
Result 22
<?php
// Php Program
// Sum of all even frequency elements in matrix
class Frequency
{
public function evenFrequencySum( & $matrix)
{
// Get the length
$r = count($matrix);
$c = count($matrix[0]);
// Use to count frequency
$record = array();
// Execute loop through by matrix row
for ($i = 0; $i < $r; $i++)
{
// Execute loop through by matrix column
for ($j = 0; $j < $c; ++$j)
{
if (array_key_exists($matrix[$i][$j], $record))
{ // increase element frequency
$record[$matrix[$i][$j]] = $record[$matrix[$i][$j]] + 1;
}
else
{ // Add new element
$record[$matrix[$i][$j]] = 1;
}
}
}
$sum = 0;
foreach($record as $key => $value)
{
if (($value % 2) == 0)
{
// Sum all even occurring elements
$sum += $key * $record[$key];
}
}
// Display calculated result
echo " Result ".$sum;
}
}
function main()
{
$task = new Frequency();
$matrix = array(
array(1, 7, 4, 6, 5),
array(8, 9, 4, 5, 1),
array(6, 2, 1, 9, -2),
array(9, 2, 1, -2, 6)
);
// Even Frequency
// (1 + 1 + 1 + 1) + (2 + 2) + (-2 + -2)
// ( 5 + 5) + ( 4 + 4 )
$task->evenFrequencySum($matrix);
}
main();
Output
Result 22
// Node Js Program
// Sum of all even frequency elements in matrix
class Frequency
{
evenFrequencySum(matrix)
{
// Get the length
var r = matrix.length;
var c = matrix[0].length;
// Use to count frequency
var record = new Map();
// Execute loop through by matrix row
for (var i = 0; i < r; i++)
{
// Execute loop through by matrix column
for (var j = 0; j < c; ++j)
{
if (record.has(matrix[i][j]))
{
// increase element frequency
record.set(matrix[i][j], record.get(matrix[i][j]) + 1);
}
else
{
// Add new element
record.set(matrix[i][j], 1);
}
}
}
var sum = 0;
for (let [key, value] of record)
{
if ((value % 2) == 0)
{
// Sum all even occurring elements
sum += key * value;
}
}
// Display calculated result
process.stdout.write(" Result " + sum);
}
}
function main()
{
var task = new Frequency();
var matrix = [
[1, 7, 4, 6, 5] ,
[8, 9, 4, 5, 1] ,
[6, 2, 1, 9, -2] ,
[9, 2, 1, -2, 6]
];
// Even Frequency
// (1 + 1 + 1 + 1) + (2 + 2) + (-2 + -2)
// ( 5 + 5) + ( 4 + 4 )
task.evenFrequencySum(matrix);
}
main();
Output
Result 22
# Python 3 Program
# Sum of all even frequency elements in matrix
class Frequency :
def evenFrequencySum(self, matrix) :
# Get the length
r = len(matrix)
c = len(matrix[0])
# Use to count frequency
record = dict()
# Execute loop through by matrix row
i = 0
while (i < r) :
# Execute loop through by matrix column
j = 0
while (j < c) :
if (matrix[i][j] in record.keys()) :
# increase element frequency
record[matrix[i][j]] = record.get(matrix[i][j]) + 1
else :
# Add new element
record[matrix[i][j]] = 1
j += 1
i += 1
sum = 0
for key, value in record.items() :
if ((value % 2) == 0) :
# Sum all even occurring elements
sum += key * value
# Display calculated result
print(" Result ", sum, end = "")
def main() :
task = Frequency()
matrix = [
[1, 7, 4, 6, 5] ,
[8, 9, 4, 5, 1] ,
[6, 2, 1, 9, -2] ,
[9, 2, 1, -2, 6]
] # Even Frequency
# (1 + 1 + 1 + 1) + (2 + 2) + (-2 + -2)
# ( 5 + 5) + ( 4 + 4 )
task.evenFrequencySum(matrix)
if __name__ == "__main__": main()
Output
Result 22
# Ruby Program
# Sum of all even frequency elements in matrix
class Frequency
def evenFrequencySum(matrix)
# Get the length
r = matrix.length
c = matrix[0].length
# Use to count frequency
record = Hash.new
# Execute loop through by matrix row
i = 0
while (i < r)
# Execute loop through by matrix column
j = 0
while (j < c)
if (record.key?(matrix[i][j]))
record[matrix[i][j]] = record[matrix[i][j]] + 1
else
record[matrix[i][j]] = 1
end
j += 1
end
i += 1
end
sum = 0
record.each { | key, value |
if ((value % 2) == 0)
# Sum all even occurring elements
sum += key * value
end
}
# Display calculated result
print(" Result ", sum)
end
end
def main()
task = Frequency.new()
matrix = [
[1, 7, 4, 6, 5] ,
[8, 9, 4, 5, 1] ,
[6, 2, 1, 9, -2] ,
[9, 2, 1, -2, 6]
]
# Even Frequency
# (1 + 1 + 1 + 1) + (2 + 2) + (-2 + -2)
# ( 5 + 5) + ( 4 + 4 )
task.evenFrequencySum(matrix)
end
main()
Output
Result 22
import scala.collection.mutable._;
// Scala Program
// Sum of all even frequency elements in matrix
class Frequency
{
def evenFrequencySum(matrix: Array[Array[Int]]): Unit = {
// Get the length
var r: Int = matrix.length;
var c: Int = matrix(0).length;
// Use to count frequency
var record = Map[Int, Int]();
// Execute loop through by matrix row
var i: Int = 0;
while (i < r)
{
// Execute loop through by matrix column
var j: Int = 0;
while (j < c)
{
if (record.contains(matrix(i)(j)))
{
// increase element frequency
record.addOne(matrix(i)(j), record.get(matrix(i)(j)).get + 1);
}
else
{
// Add new element
record.addOne(matrix(i)(j), 1);
}
j += 1;
}
i += 1;
}
var sum: Int = 0;
for ((key, value) <- record)
{
if ((value % 2) == 0)
{
// Sum all even occurring elements
sum += key * value;
}
}
// Display calculated result
print(" Result " + sum);
}
}
object Main
{
def main(args: Array[String]): Unit = {
var task: Frequency = new Frequency();
var matrix: Array[Array[Int]] =
Array( Array(1, 7, 4, 6, 5),
Array(8, 9, 4, 5, 1),
Array(6, 2, 1, 9, -2),
Array(9, 2, 1, -2, 6)
);
// Even Frequency
// (1 + 1 + 1 + 1) + (2 + 2) + (-2 + -2)
// ( 5 + 5) + ( 4 + 4 )
task.evenFrequencySum(matrix);
}
}
Output
Result 22
import Foundation
// Swift 4 Program
// Sum of all even frequency elements in matrix
class Frequency
{
func evenFrequencySum(_ matrix: [[Int]])
{
// Get the length
let r: Int = matrix.count;
let c: Int = matrix[0].count;
// Use to count frequency
var record = [Int: Int]();
// Execute loop through by matrix row
var i: Int = 0;
while (i < r)
{
// Execute loop through by matrix column
var j: Int = 0;
while (j < c)
{
if (record.keys.contains(matrix[i][j]))
{
// increase element frequency
record[matrix[i][j]] = record[matrix[i][j]]! + 1;
}
else
{
// Add new element
record[matrix[i][j]] = 1;
}
j += 1;
}
i += 1;
}
var sum: Int = 0;
for (key, value) in record
{
if ((value % 2) == 0)
{
// Sum all even occurring elements
sum += key * value;
}
}
// Display calculated result
print(" Result ", sum, terminator: "");
}
}
func main()
{
let task: Frequency = Frequency();
let matrix: [[Int]] = [
[1, 7, 4, 6, 5] ,
[8, 9, 4, 5, 1] ,
[6, 2, 1, 9, -2] ,
[9, 2, 1, -2, 6]
];
// Even Frequency
// (1 + 1 + 1 + 1) + (2 + 2) + (-2 + -2)
// ( 5 + 5) + ( 4 + 4 )
task.evenFrequencySum(matrix);
}
main();
Output
Result 22
// Kotlin Program
// Sum of all even frequency elements in matrix
class Frequency
{
fun evenFrequencySum(matrix: Array < Array < Int >> ): Unit
{
// Get the length
var r: Int = matrix.count();
var c: Int = matrix[0].count();
// Use to count frequency
var record = mutableMapOf < Int , Int > ();
// Execute loop through by matrix row
var i: Int = 0;
while (i < r)
{
// Execute loop through by matrix column
var j: Int = 0;
while (j < c)
{
if (record.containsKey(matrix[i][j]))
{
// increase element frequency
record.put(matrix[i][j], record.getValue(matrix[i][j]) + 1);
}
else
{
// Add new element
record.put(matrix[i][j], 1);
}
j += 1;
}
i += 1;
}
var sum: Int = 0;
for (key in record.keys)
{
if ((record.getValue(key) % 2) == 0)
{
// Sum all even occurring elements
sum += key * record.getValue(key);
}
}
// Display calculated result
print(" Result " + sum);
}
}
fun main(args: Array < String > ): Unit
{
var task: Frequency = Frequency();
var matrix: Array < Array < Int >> =
arrayOf(
arrayOf(1, 7, 4, 6, 5),
arrayOf(8, 9, 4, 5, 1),
arrayOf(6, 2, 1, 9, -2),
arrayOf(9, 2, 1, -2, 6)
);
// Even Frequency
// (1 + 1 + 1 + 1) + (2 + 2) + (-2 + -2)
// ( 5 + 5) + ( 4 + 4 )
task.evenFrequencySum(matrix);
}
Output
Result 22
Please share your knowledge to improve code and content standard. Also submit your doubts, and test case. We improve by your feedback. We will try to resolve your query as soon as possible.
New Comment