foo.cc: In function 'int main()':
foo.cc:25:21: warning: 'num1' may be used uninitialized [-Wmaybe-uninitialized]
   25 |     cout << num1 << " " << num2 << endl;
      |                     ^~~
foo.cc:13:9: note: 'num1' was declared here
   13 |     int num1, num2;
      |         ^~~~
foo.cc:25:28: warning: 'num2' may be used uninitialized [-Wmaybe-uninitialized]
   25 |     cout << num1 << " " << num2 << endl;
      |                            ^~~~
foo.cc:13:15: note: 'num2' was declared here
   13 |     int num1, num2;
      |               ^~~~

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