An executable code block is known as a function. It may be called repeatedly and reused. A function can deliver information back to you after receiving information from you. There are functions that come built-in to many programming languages that you can access in their libraries, but you can also write your own functions.
Code
#include <iostream>
using namespace std;
int FindSmallestVal()
{
int number = 0, min = 0;
// reads number until the number > 0
while (number <= 0)
{
cin >> number;
// finds the minimum value in the min,number
min = number < min ? number : min;
}
// returns minimum
return min;
}
int main()
{
int minimumVal;
minimumVal = FindSmallestVal();
cout << minimumVal << endl;
}
Input
-80 -10 -70 95
Output
-80
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