foo.cc: In function ‘int main()’:
foo.cc:12:23: warning: unused variable ‘e’ [-Wunused-variable]
   12 |         int a,b,c,d=1,e,f,g;
      |                       ^
foo.cc:12:25: warning: unused variable ‘f’ [-Wunused-variable]
   12 |         int a,b,c,d=1,e,f,g;
      |                         ^
foo.cc:12:27: warning: unused variable ‘g’ [-Wunused-variable]
   12 |         int a,b,c,d=1,e,f,g;
      |                           ^

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