/in/foo.c: In function 'main':
/in/foo.c:12:7: warning: this 'else' clause does not guard... [-Wmisleading-indentation]
       else
       ^~~~
/in/foo.c:14:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'else'
     for(i=3;i<=n;i++)
     ^~~