Question

write a code to multiply two integer arrays (each with N numbers). Monitor the time to run that code with the following N: 50, 100, 200, and 400

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You can write in either C or in Java,

Provide correct solution to get upvote,

Thanks

Answer 1

The source code in Java Programming Language is given below:

import java.util.*;

public class Main
{
public static void main(String[] args)
{  
//variable declaration
long startTime, executionTime;
  
//initialize with start time
startTime = System.nanoTime();
  
final int N = 50;
  
//array declaration
int[] a = new int[N];
int[] b = new int[N];
long[] c = new long[N];
  
  
//multiply two array
for (int i = 0; i < N; i++)
{
       c[i] = a[i] * b[i];
}
  
//calculate execution time
executionTime = System.nanoTime() - startTime;
  
//display the result
System.out.println("Size of array: "+N);
System.out.println("Execution time: " + executionTime +" nano seconds");
}          
}

OUTPUT: