logo CodeStepByStep logo

switchPairs

Language/Type: C++ arrays traversals

Write a function named switchPairs that accepts an array of strings and its length as parameters and switches the order of pairs of values in the array. Your function should swap the order of the first two values, then switch the order of the next two, and so on. For example, if the array stores:

       
string a[] = {"a", "bb", "c", "ddd", "ee", "f", "g"};
switchPairs(a, 7);

Your function should switch the first pair ("a", "bb"), the second pair ("c", "ddd") and the third pair ("ee", "f"), to yield this array:

{"bb", "a", "ddd", "c", "f", "ee", "g"}

If there are an odd number of values, the final element is not moved.

Function: Write a C++ function as described, not a complete program.

You must log in before you can solve this problem.

Log In

Need help?

Stuck on an exercise? Contact your TA or instructor.

If something seems wrong with our site, please

Is there a problem? Contact us.