As we talked about, variables cannot change types:
int main() {
int x = 5;
float x = 3.14; // error
}
However, a variable's value can change:
int main() {
int x = 5;
x = 10; // this is ok
x = 15; // still ok
}
Run the code. You should get a compilation error.
When updating a variable's value, you don't need to redeclare the type. In fact, you can't. Fix the code so that it updates (64 -> 32) properly.