Multiple answer

http://tpcg.io/peJ1WUji
Here it is printing every time yes when the sum of subset is zero.
How should I ensure that when it print yes the first time… then don’t print again.

you can use a flag variable for this
initially set flag =true

now write

if(flag){
       cout<<"Yes";
       flag=flase;
}

now from next time flag is false so it will not print yes

if you have more doubts regarding this feel free to ask
i hope this helps
if yes hit a like :heart:: and don’t forgot to mark doubt as resolved :grinning:

I have used flag …then also it is printing two times… Please see this

Sorry it got solved… i was not passing the address…

okay great :+1:
well done