Sum the Top Two

Write a function int sumTopTwo(stack<int> s) that returns the sum of the two elements nearest the top of the stack. You may assume the stack always has at least 2 elements.

The tests print the returned sum on its own line, for example for a stack holding 1, 4, 5 (5 on top) (see Expected Output).

Do NOT write a main function.

Expected Output:

9↵
32↵

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

Hints4 available

Topics:

STL ContainersStacks

Code Editor

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Your Output

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Test Cases

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