[Solved] How can I set object in list [closed]

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i want change list[0] by changing f variable (not list[0] directly)

That is not possible. The collection list is made up of pointers to objects as are the variables f1, f2, and f each a pointer to an object.

By changing the pointer of f you do not automatically change the pointer held in the collection that happened to be pointing to the same object.

By the way, this behavior is a good thing.

solved How can I set object in list [closed]