foo.cc: In function 'int main()':
foo.cc:32:7: warning: right operand of comma operator has no effect [-Wunused-value]
   32 | b1++,s;
      |       ^
foo.cc:50:8: warning: right operand of comma operator has no effect [-Wunused-value]
   50 | b1++,s1;
      |        ^
foo.cc:6:14: warning: unused variable 'x' [-Wunused-variable]
    6 | int n1,n2,n3,x=0,y=0,n;
      |              ^
foo.cc:6:18: warning: unused variable 'y' [-Wunused-variable]
    6 | int n1,n2,n3,x=0,y=0,n;
      |                  ^
foo.cc:6:22: warning: unused variable 'n' [-Wunused-variable]
    6 | int n1,n2,n3,x=0,y=0,n;
      |                      ^

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