Sum a Stack Copy

Write a function int sumStack(stack<int> s) that returns the sum of every element in the stack. The caller's original stack must be left untouched. An empty stack sums to 0.

The tests print the returned sum on one line, then the size of the original stack after the call on the next line. For a stack holding 4, 5, 6 the output is exactly what is shown in Expected Output.

Do NOT write a main function.

Expected Output:

15↵
3↵
0↵
0↵

= newline. The output ends with a newline — print one after the last line.

Hints4 available

Topics:

STL ContainersStacks

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Your Output

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Test Cases

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