[Solved] Postfix notation stack C++ [closed]

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  • Using stack.top() is illegal if the stack is empty.
    Change while((!highPrecedence(stack.top(),c)) && (stack.size()!=0)){
    to while((!stack.empty()) && (!highPrecedence(stack.top(),c))){
  • The initiali value of i is not good and you are printing uninitialized variable, which has indeterminate value.
    Change int i=0; to int i=-1;

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solved Postfix notation stack C++ [closed]