How to create an efficient java code using Greedy algorithm to solve the problem?

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
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How to create an efficient java code using Greedy algorithm to solve the problem?

Covering Segments by Points Problem: We are given a sequence of n intervals
[₁,₁],... [ln, n] on x-axis. Find a set of points of minimum size such that
each segment [li, ri] contains a point, i.e., there exists a point x from this set
such that l¡ ≤ x ≤ r¡, for all 1 ≤ i ≤ n. In other words, find the minimum
number of points on x-axis needed to cover all given intervals.
Transcribed Image Text:Covering Segments by Points Problem: We are given a sequence of n intervals [₁,₁],... [ln, n] on x-axis. Find a set of points of minimum size such that each segment [li, ri] contains a point, i.e., there exists a point x from this set such that l¡ ≤ x ≤ r¡, for all 1 ≤ i ≤ n. In other words, find the minimum number of points on x-axis needed to cover all given intervals.
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