/in/foo.cc: In function 'int main()':
/in/foo.cc:7:19: warning: unused variable 'sumn' [-Wunused-variable]
    7 |         long long sumn = 1, summ = 1;
      |                   ^~~~
/in/foo.cc:7:29: warning: unused variable 'summ' [-Wunused-variable]
    7 |         long long sumn = 1, summ = 1;
      |                             ^~~~
/in/foo.cc:9:16: warning: unused variable 'temp' [-Wunused-variable]
    9 |         double temp;
      |                ^~~~