Question

An online shopping site uses the following algorithm to decide what related products to show on each product page.

Flow chart for related products algorithm. The "start" node flows to a diamond node with condition "itemSimilarity > 0.9". From there, an arrow labeled true flows to a node with "showRelated ← true" and an arrow labeled false flows to a diamond node with condition "userSimilarity > 0.8". From that diamond node, an arrow labeled true flows to "showRelated ← true" and an arrow labeled false flows to a diamond node with condition "updatedModel = true". From that diamond node, an arrow labeled true flows to "showRelated ← true" and an arrow labeled false flows to "showRelated ← false".
[How do you read a flowchart?]
Which pseudocode is equivalent to the algorithm in the flowchart?

Answer 1

To read a flowchart, follow the flow of arrows and decisions. The pseudocode equivalent to the algorithm reflects conditions and actions.

Step-by-step explanation:

Reading a Flowchart

In order to read a flowchart, you need to follow the flow of arrows and decisions to determine the sequence of actions. Starting from the 'start' node, you proceed through the diamond nodes with their conditions. If a condition is true, you follow the arrow labeled true, and if it's false, you follow the arrow labeled false. This process continues until you reach the final nodes with the actions.

Pseudocode Equivalent to the Flowchart

The pseudocode equivalent to the algorithm in the flowchart would be:

if (itemSimilarity > 0.9) {

showRelated = true;

} else if (userSimilarity > 0.8) {

showRelated = true;

} else if (updatedModel == true) {

showRelated = true;

} else {

showRelated = false;

This pseudocode reflects the conditions and actions specified in the flowchart and provides an equivalent representation of the algorithm.