I know it takes a lot of effort to write a contest and I appreciate the hard work of writers but there was something odd with today's contest or I just screwed this one up or both. idk

I have the newest version of vs code but my compiler is c++14. (when I code "cout<<__cplusplus;" gives "201402".)

how can I fix it?

does anybody know what the problem with this code? (runtime error!!) Your text to link here...