Insert Into a Set

A set<int> named s has already been declared for you. Insert the values 3, 1 and 2 into it (one s.insert(...) call per value), then print how many elements the set holds using s.size().

Print exactly one line in the exact format shown in Expected Output.

Expected Output:

Size: 3↵

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

Hints4 available

Topics:

STL ContainersSets

Code Editor

Tab to indent (Esc then Tab to move on) · Ctrl+Enter to run · Shift+Alt+F to format · Ctrl+Space to expand shortcuts (cout, fori)

Your Output

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Test Cases

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