Watch use_count as Owners Join and Leave

Read one integer from standard input and follow these steps in order, printing a line after each:
1. Create a, a shared_ptr<int> built with make_shared, owning that number. Print a.use_count().
2. Make b a copy of a. Print the count.
3. Make c a copy of a. Print the count.
4. Call c.reset() so c gives up ownership. Print the count.
5. Add 5 to the number through `b`, then print it through `a`.

For the input 12 the program prints exactly the output shown in Expected Output.

Do not write delete and do not use a raw new.

Expected Output:

after a: 1↵
after b: 2↵
after c: 3↵
after reset: 2↵
value: 17↵

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

Hints4 available

Topics:

Pointers

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

Run your code to see the output here...

Test Cases

Run your code to see test case results.