foo.cc: In function 'int main()':
foo.cc:8:6: warning: unused variable 'a' [-Wunused-variable]
    8 |  int a,n,b,c,d,i,j,k,max;
      |      ^
foo.cc:8:8: warning: unused variable 'n' [-Wunused-variable]
    8 |  int a,n,b,c,d,i,j,k,max;
      |        ^
foo.cc:8:10: warning: unused variable 'b' [-Wunused-variable]
    8 |  int a,n,b,c,d,i,j,k,max;
      |          ^
foo.cc:8:12: warning: unused variable 'c' [-Wunused-variable]
    8 |  int a,n,b,c,d,i,j,k,max;
      |            ^
foo.cc:8:14: warning: unused variable 'd' [-Wunused-variable]
    8 |  int a,n,b,c,d,i,j,k,max;
      |              ^
foo.cc:8:16: warning: unused variable 'i' [-Wunused-variable]
    8 |  int a,n,b,c,d,i,j,k,max;
      |                ^
foo.cc:8:18: warning: unused variable 'j' [-Wunused-variable]
    8 |  int a,n,b,c,d,i,j,k,max;
      |                  ^
foo.cc:8:20: warning: unused variable 'k' [-Wunused-variable]
    8 |  int a,n,b,c,d,i,j,k,max;
      |                    ^
foo.cc:8:22: warning: unused variable 'max' [-Wunused-variable]
    8 |  int a,n,b,c,d,i,j,k,max;
      |                      ^~~
foo.cc:9:7: warning: unused variable 'flag' [-Wunused-variable]
    9 |  bool flag;
      |       ^~~~
foo.cc:10:9: warning: unused variable 's' [-Wunused-variable]
   10 |  double s;
      |         ^

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