C++ Exercises: Check if a given non-negative number is a multiple of 3 or 7, but not both
C++ Basic Algorithm: Exercise-40 with Solution
Write a C++ program to check if a given number that is not negative is a multiple of 3 or 7, but not both.
Sample Solution:
C++ Code :
#include <iostream>
using namespace std;
bool test(int n)
{
return n % 3 == 0 ^ n % 7 == 0;
}
int main()
{
cout << test(3) << endl;
cout << test(7) << endl;
cout << test(21) << endl;
return 0;
}
Sample Output:
1 1 0
Pictorial Presentation:

Flowchart:

C++ Code Editor:
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Next: Write a C++ program to check if a given number is within 2 of a multiple of 10.
What is the difficulty level of this exercise?
C++ Programming: Tips of the Day
Static member initialization in a class template
Just define it in the header:
template<typename T> struct S { static double something_relevant; }; template<typename T> double S<T>::something_relevant = 1.5;
Since it is part of a template, as with all templates the compiler will make sure it's only defined once.
Ref: https://bit.ly/3MxgJH9
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