foo.cc: In function 'int main()':
foo.cc:11:12: warning: variable 'b' set but not used [-Wunused-but-set-variable]
   11 |   int m1=0,b,b1;
      |            ^
foo.cc:11:14: warning: unused variable 'b1' [-Wunused-variable]
   11 |   int m1=0,b,b1;
      |              ^~
foo.cc:23:18: warning: unused variable 'b1' [-Wunused-variable]
   23 |   int m1=99999,b,b1,x;
      |                  ^~
foo.cc:23:21: warning: variable 'x' set but not used [-Wunused-but-set-variable]
   23 |   int m1=99999,b,b1,x;
      |                     ^
foo.cc:19:6: warning: unused variable 'f' [-Wunused-variable]
   19 |  int f=1;
      |      ^
foo.cc:28:9: warning: 'b' may be used uninitialized in this function [-Wmaybe-uninitialized]
   28 |   if(d[b]==m1)
      |      ~~~^

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