how do i make it in C++ for it to read positive integers only

problem:
Write a short C++ program that will read positive integers entered by the user until the value -1 is read, then print the sum of the values. If the user enters a negative number (other than -1), display an error message and ask them to enter another number.

Hint - use nested while loops to handle the input. Also, use a variable to accumulate the sum of the input values, and at the end of the program, display the largest number the user entered. (See Practice Program 3 for an example of finding the largest value)




going to use a while loop ofc
starting it like this

while (value != -1)

is value the variable you declared for the input

ya

k, declare a variable for the sum, declare a variable for the largest integer entered

in the while loop, sum = sum + value; (i dont remember syntax, but you get the point)
if statement for, if value "greater than" largestentered, largestentered = value

This post has been edited by randomtask on Fri - Jul 10 2009 - 15:39:30

so far

while (value != -1) {
cout << "Enter numbers";
cin >> value;
if (value != -1) {
total = total + value;
count = count + 1;
}
}

poop

while (value != -1) {
cout << "Enter numbers";
cin >> value;
if (value != -1) {
total = total + value;
count = count + 1;
if (value > largest)
largest = value
}
}

doesnt say anywhere that you need to count the number of numbers entered

but you do need to keep track of largest number

thats better

true that

still need to count only positive numbers
thats what i have problem with

nest another If in there right after the while for value greater than zero

wow im retarded
i was reading positive as even this whole time

this program is cake then nvm

it's displaying both cout's when launching the program


while (value != -1) {
if (value > 0) {
cout << "Invalid entry, enter another number ";
}
cout << "Enter numbers";
cin >> value;
if (value != -1) {
total = total + value;
if (value > largest)
largest = value;
}
}

greater than needs to be less than

it is what it is

//Declerations
int total = 0;
int largest =0;
int value;


//Process
while (value != -1) {
if (value < 0) {
cout << "Invalid entry, ";
}
cout << "Enter numbers: ";
cin >> value;
if (value != -1) {
total = total + value;
if (value > largest)
largest = value;
}
}

//Display
cout << "The Largest is: " << largest << endl;
cout << "The sum is: " << total << endl;

&& value > 0

thats what i had been thinking

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