Create a test program to test this MergeSort Program: package ArraySplit; import java.util.Arrays; public class ArraySplit { public static void mergeSort(int[] a, int n) { if (n < 2) { return; } int mid = n / 2; int[] l = new int[mid]; int[] r = new int[n - mid]; for (int i = 0; i < mid; i++) { l[i] = a[i]; } for (int i = mid; i < n; i++) { r[i - mid] = a[i]; } mergeSort(l, mid); mergeSort(r, n - mid); merge(a, l, r, mid, n - mid); } public static void merge(int[] a, int[] l, int[] r, int left, int right) { int i = 0, j = 0, k = 0; while (i < left && j < right) { if (l[i] <= r[j]) { a[k++] = l[i++]; } else { a[k++] = r[j++]; } } while (i < left) { a[k++] = l[i++]; } while (j < right) { a[k++] = r[j++]; } } }
Create a test program to test this MergeSort Program: package ArraySplit; import java.util.Arrays; public class ArraySplit { public static void mergeSort(int[] a, int n) { if (n < 2) { return; } int mid = n / 2; int[] l = new int[mid]; int[] r = new int[n - mid]; for (int i = 0; i < mid; i++) { l[i] = a[i]; } for (int i = mid; i < n; i++) { r[i - mid] = a[i]; } mergeSort(l, mid); mergeSort(r, n - mid); merge(a, l, r, mid, n - mid); } public static void merge(int[] a, int[] l, int[] r, int left, int right) { int i = 0, j = 0, k = 0; while (i < left && j < right) { if (l[i] <= r[j]) { a[k++] = l[i++]; } else { a[k++] = r[j++]; } } while (i < left) { a[k++] = l[i++]; } while (j < right) { a[k++] = r[j++]; } } }
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
Create a test program to test this MergeSort Program:
package ArraySplit;
import java.util.Arrays;
public class ArraySplit {
public static void mergeSort(int[] a, int n) {
if (n < 2) {
return;
}
int mid = n / 2;
int[] l = new int[mid];
int[] r = new int[n - mid];
for (int i = 0; i < mid; i++) {
l[i] = a[i];
}
for (int i = mid; i < n; i++) {
r[i - mid] = a[i];
}
mergeSort(l, mid);
mergeSort(r, n - mid);
merge(a, l, r, mid, n - mid);
}
public static void merge(int[] a, int[] l, int[] r, int left, int right) {
int i = 0, j = 0, k = 0;
while (i < left && j < right) {
if (l[i] <= r[j]) {
a[k++] = l[i++];
}
else {
a[k++] = r[j++];
}
}
while (i < left) {
a[k++] = l[i++];
}
while (j < right) {
a[k++] = r[j++];
}
}
}
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