Pseudo Code to Find an Element in an Array

Overview

The following pseudo code outlines the logic for searching for a specific value (in this case, 75) in an array of integers. The code will track if the value is found and also return the index of the found value.

Pseudo Code

SET anArray TO [78, 83, 72, 80, 83]
SET found TO FALSE
SET index TO -1
SET currentIndex TO 0
SET targetValue TO 75

WHILE (NOT found) AND (currentIndex < LENGTH(anArray)) DO
    IF anArray[currentIndex] = targetValue THEN
        SET found TO TRUE
        SET index TO currentIndex
    ELSE
        SET currentIndex TO currentIndex + 1
    END IF
END WHILE

RETURN index

Explanation of Variables

• anArray: The array of integers to search within.
• found: A boolean flag indicating if the target value has been found.
• index: The position of the target value in the array, initialized to -1 to signify 'not found'.
• currentIndex: The current position in the array being checked, starting from 0.
• targetValue: The value we are searching for, set to 75.

Control Flow

1. Initialization: The necessary variables are set up, including the array and target value.
2. While Loop: The loop continues until either the value is found or the end of the array is reached.
3. Condition Check: Inside the loop, if the current element matches the target value, it sets the found flag to true and records the index.
4. Increment Index: If the current element does not match, it increments currentIndex to check the next element.
5. Return Value: Finally, it returns the index of the found element or -1 if not found.

Conclusion

This pseudo code represents a straightforward iterative search method that efficiently determines the presence and position of a specified value in an array.