A sentinel is a loop exit value or list delimiter whose value is outside the range of valid input, such as -1 for a zero-based array index, or ~ for alphabetic strings.
Questions tagged [sentinel]
410 questions
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Python 3- Assign grade
I am trying to write a program that reads a list of scores and then assigns a letter grade based on the score. Define a function to prompt user to enter valid scores until they enter a sentinel value -999. The function should create a list and…

Hassan Ali
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C# Keeping sentinel value out of my array
This code works when I enter 10 values. If I enter less my sentinel value is added. I'd like that to stop, as well as being able to manipulate my array length so I don't get however many 0's left when entering less than 10.
using System;
using…

burokkori
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(C++) Calculating the average number using while loop
needing some help on how to find the average number of boxes of cookies sold by children using a counter, accumulator, and an end sentinel (basic programming hwk, yay!). I'm having an issue with figuring out why the averageBoxes prints out the wrong…

Frankie
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How can I read from the same input file multiple times from different points within the file using sentinel values (-1) in c++?
I have a task where I have to read different sections of an input file(.txt) of integers in c++. The file contains an unknown number of positive integers, each separated by white-space with several sentinel values of -1 placed randomly in the list…

Greg
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Calling another class in Java
OK, so what I want to do is create 2 classes. One is main class and the second class is to make a loop sentinel control and then return the total of it till the user enters 0. I couldn't get it to work. I don't know how to call the other class…

Hikkup
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