/in/foo.cc: In function 'int main()':
/in/foo.cc:18:9: warning: this 'else' clause does not guard... [-Wmisleading-indentation]
   18 |         else
      |         ^~~~
/in/foo.cc:20:17: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'else'
   20 |                 if(month==1)
      |                 ^~
/in/foo.cc:44:23: warning: 'd' may be used uninitialized [-Wmaybe-uninitialized]
   44 |                 cout<<d<<endl;
      |                       ^
/in/foo.cc:5:33: note: 'd' was declared here
    5 |         int year,month,leap,day,d;
      |                                 ^