R-4.12 Give a big-Oh characterization, in terms of n, of the running time of the example4 method shown in Code Fragment 4.12.
R-4.12 Give a big-Oh characterization, in terms of n, of the running time of the example4 method shown in Code Fragment 4.12.
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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Transcribed Image Text:R-4.12 Give a big-Oh characterization, in terms of n, of the running time of the example4
method shown in Code Fragment 4.12.
![26 /** Returns the sum of the prefix sums of given array. */
27 public static int example4(int[] arr) {
28
29
int n = arr.length, prefix = 0, total
for (int j=0; j < n; j++) {
prefix + = arr[j];
30
31
total += prefix;
32
33
34
}
}
return total;
=
0;
// loop from 0 to n-1](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe8f98c03-2dea-45fe-9e7d-c001811b98bd%2Fc94f8aef-0d64-49e0-ba92-5d99e98eece7%2Fdvc423_processed.png&w=3840&q=75)
Transcribed Image Text:26 /** Returns the sum of the prefix sums of given array. */
27 public static int example4(int[] arr) {
28
29
int n = arr.length, prefix = 0, total
for (int j=0; j < n; j++) {
prefix + = arr[j];
30
31
total += prefix;
32
33
34
}
}
return total;
=
0;
// loop from 0 to n-1
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