foo.cc: In function 'void cal(int, int)':
foo.cc:27:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   27 |     if(a>=b)
      |     ^~
foo.cc:29:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   29 |         con=a*10/b;
      |         ^~~
foo.cc:19:11: warning: unused variable 'j' [-Wunused-variable]
   19 |     int i,j;
      |           ^
foo.cc: In function 'int main()':
foo.cc:61:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   61 |         scanf("%d%d",&a,&b);
      |         ~~~~~^~~~~~~~~~~~~~
foo.cc:62:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   62 |         scanf("%d%d",&a1,&b1);
      |         ~~~~~^~~~~~~~~~~~~~~~

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