Hi$,$ the last code you sent did not worked, i have attached the errors occured in level $2,3$ and $4,$ please help me in this, I need your help urgently, please send a single code for all levels, for the background and the questions please see the last question I asked, and please send the code in c$++,$ its almost $10$th time I have asked the question but you guys did not able to help me out, I am afraid that I will need to unsubscribe if this is gonna happen again.