foo.cc: In function ‘int main()’:
foo.cc:19:19: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   19 |               if(n=1)
      |                  ~^~
foo.cc:10:9: warning: this ‘else’ clause does not guard... [-Wmisleading-indentation]
   10 |         else
      |         ^~~~
foo.cc:22:13: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘else’
   22 |             cout<<"Yes"<<endl;
      |             ^~~~