foo.c: In function 'main':
foo.c:20:40: warning: unused variable 'o' [-Wunused-variable]
   20 |         long long int n,m,k,j,l,b,pd=1,o=0;
      |                                        ^
foo.c:20:35: warning: unused variable 'pd' [-Wunused-variable]
   20 |         long long int n,m,k,j,l,b,pd=1,o=0;
      |                                   ^~
foo.c:20:33: warning: unused variable 'b' [-Wunused-variable]
   20 |         long long int n,m,k,j,l,b,pd=1,o=0;
      |                                 ^
foo.c:20:31: warning: unused variable 'l' [-Wunused-variable]
   20 |         long long int n,m,k,j,l,b,pd=1,o=0;
      |                               ^
foo.c:20:29: warning: unused variable 'j' [-Wunused-variable]
   20 |         long long int n,m,k,j,l,b,pd=1,o=0;
      |                             ^
foo.c:20:27: warning: unused variable 'k' [-Wunused-variable]
   20 |         long long int n,m,k,j,l,b,pd=1,o=0;
      |                           ^
foo.c:20:25: warning: unused variable 'm' [-Wunused-variable]
   20 |         long long int n,m,k,j,l,b,pd=1,o=0;
      |                         ^

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