Problem Solving with C++ (10th Edition)
Problem Solving with C++ (10th Edition)
10th Edition
ISBN: 9780134448282
Author: Walter Savitch, Kenrick Mock
Publisher: PEARSON
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Chapter 14.2, Problem 12STE

What is the output of the following program?

#include <iostream>

using namespace std;

int mystery(int n);

//Precondition n > = 1.

int main()

{

cout << mystery(3);

return 0;

}

int mystery(int n)

{

if (n < = 1)

return 1;

else

return ( mystery(n − 1) + n );

}

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