Data Str & Algorithm HW Solutions 44

Data Str & Algorithm HW Solutions 44 - (b Use a...

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44 Chap. 6 General Trees 6.16 (a) // Use a helper function with a pass-by-reference // variable to indicate current position in the // node list. template <class Elem> BinNode<Elem>* convert(char* inlist) { int curr = 0; return converthelp(inlist, curr); } // As converthelp processes the node list, curr is // incremented appropriately. template <class Elem> BinNode<Elem>* converthelp(char* inlist, int& curr) { if (inlist[curr] == ’/’) { curr++; return NULL; } BinNode<Elem>* temp = new BinNode(inlist[curr++], NULL, NULL); temp->left = converthelp(inlist, curr); temp->right = converthelp(inlist, curr); return temp;
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Unformatted text preview: } (b) // Use a helper function with a pass-by-reference // variable to indicate current position in the // node list. template <class Elem> BinNode<Elem>* convert(char* inlist) { int curr = 0; return converthelp(inlist, curr); } // As converthelp processes the node list, curr is // incremented appropriately. template <class Elem> BinNode<Elem>* converthelp(char* inlist, int& curr) { if (inlist[curr] == ’/’) { curr++; return NULL; } BinNode<Elem>* temp = new BinNode<Elem>(inlist[curr++], NULL, NULL); if (inlist[curr] == ’\’’) return temp;...
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