Hello can someone explain to me how this code works? Possibly line by line. I wish to specifically understand for loops within this code and how it translates to the output.

Thank you!

#include class StackNode public: int content StackNode* pNext; StackNode* push(StackNode pHead, int newc){ StackNode* new lead; newHead-new StackNode; newHead->content-newc; newHead->pNext-phead; return newlead; 2 StackNode* pop(StackNode* pilead) { if (pHeadl-nullptr) StackNode* new lead; newHead-plead->pNext; delete plead; return new lead; ) return nullptr > int readTop(StackNode* plead) { if (pHeadl-nullptr){ return pHead->content; > return 0; > int addTopTerms (StackNode pHead, int numTerms) { if(numermac1) return 0; > if (pHead- nullptr) { return 0; > return (pHead->content) + addTopTerms ( (pHead->pNext), numterms-1); > int main() { StackNode* pointer Head-nullptr; int finalLength: for(int i=0;i finalLength-100; int ul, helper; std::cin>>I; while(>0){ helper-addTopTerms(pointerlead, I); pointerHead-push(pointerHead, helper); ++finalLength; std::cin>>I; > std::cout