Use the screenshot (alphabet) below to code a Breadth-first search (BFS) algorithm in C++. Please explain what each line of code does.

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
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Use the screenshot (alphabet) below to code a Breadth-first search (BFS) algorithm in C++. Please explain what each line of code does. 

Breadth-first search
• A breadth-first search (BFS) explores
nodes nearest the root before
exploring nodes further away
For example, after searching A,
then B, then C, the search
proceeds with D, E, F, G
Node are explored in the order A B
CDEFGHIJKLM NOPQ
J
K
N
o J will be found before N
Transcribed Image Text:Breadth-first search • A breadth-first search (BFS) explores nodes nearest the root before exploring nodes further away For example, after searching A, then B, then C, the search proceeds with D, E, F, G Node are explored in the order A B CDEFGHIJKLM NOPQ J K N o J will be found before N
Breadth-first search algorithm
• Put the root node on a queue;
while (queue is not empty) {
remove a node from the queue;
if (node is a goal node) return success;
put all children of node onto the queue;
}
return failure;
Transcribed Image Text:Breadth-first search algorithm • Put the root node on a queue; while (queue is not empty) { remove a node from the queue; if (node is a goal node) return success; put all children of node onto the queue; } return failure;
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