Design an algorithm that will prompt an operator for a student’s serial number and the student’s score out of 100. Your program is then to match the score to a letter grade and print the grade to the screen. Calculate the letter grade as follows: Exam score Assigned grade 90 and above A 80–89 B 70–79 C 60–69 D below 60 F answer only the  Defining diagram : in table format input, processing and output? please I need better answer.

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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Design an algorithm that will prompt an operator for a student’s serial number and the student’s score out of 100. Your program is then to match the score to a letter grade and print the grade to the screen. Calculate the letter grade as follows:

Exam score

Assigned grade

90 and above

A

80–89

B

70–79

C

60–69

D

below 60

F

answer only the  Defining diagram : in table format input, processing and output? please I need better answer.

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