Implementation problem in target sum triplet hint please help

I m having implementation problem in target sum Triplet hint video Please share a piece of code Please help Thanks in advance.

@AyushKumar9032
Hello Ayush,
fix one element and rest approach is same as target sum pair problem

@AyushKumar9032
wait i m sharing

@AyushKumar9032

thanks i got it on geeksforgeeks implementation part can you please explain the product triplet which is available on geeksforgeeks

please explain since it contains c++ stl and i know stl but since not a proffesional so please explain and give more focus while explaining the if part in for loop

@AyushKumar9032
which if u r talking ?
pls post syntax here