Java Array Exercises: Merge elements of A with B by maintaining the sorted order
Java Array: Exercise-58 with Solution
Given two sorted arrays A and B of size p and q, write a Java program to merge elements of A with B by maintaining the sorted order i.e. fill A with first p smallest elements and fill B with remaining elements.
Example:
Input :
int[] A = { 1, 5, 6, 7, 8, 10 }
int[] B = { 2, 4, 9 }
Output:
Sorted Arrays:
A: [1, 2, 4, 5, 6, 7]
B: [8, 9, 10]
Sample Solution:
Java Code:
import java.util.Arrays;
class solution
{
public static void merge_sorted_arrays(int[] A, int p, int[] B, int q)
{
for (int i = 0; i < p; i++)
{
if (A[i] > B[0])
{
int temp = A[i];
A[i] = B[0];
B[0] = temp;
int first_arr = B[0];
int k;
for (k = 1; k < q && B[k] < first_arr; k++) {
B[k - 1] = B[k];
}
B[k - 1] = first_arr;
}
}
}
public static void main (String[] args)
{
int[] A = { 1, 5, 6, 7, 8, 10 };
int[] B = { 2, 4, 9 };
int p = A.length;
int q = B.length;
System.out.println("Original Arrays:");
System.out.println("A: " + Arrays.toString(A));
System.out.println("B: " + Arrays.toString(B));
merge_sorted_arrays(A, p, B, q);
System.out.println("\nSorted Arrays:");
System.out.println("A: " + Arrays.toString(A));
System.out.println("B: " + Arrays.toString(B));
}
}
Sample Output:
Original Arrays: A: [1, 5, 6, 7, 8, 10] B: [2, 4, 9] Sorted Arrays: A: [1, 2, 4, 5, 6, 7] B: [8, 9, 10]
Flowchart:
Java Code Editor:
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Java: Tips of the Day
How to sort an ArrayList?
Collections.sort(testList); Collections.reverse(testList);
That will do what you want. Remember to import Collections though!
Ref: https://bit.ly/32urdSe
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