Task: Convert the given string from Infix to Postfix. Example: Input: 1 A*(B+C)/D Output: ABC+*D/ Here is the Code: Program in C++: #include <iostream> #include <bits/stdc++.h> using namespace std; int prec(char c) { if(c=='^') { return 3; } else if(c=='*'||c=='/') { return 2; } else if(c=='+'||c=='-') { return 1; } else { return -1; } } int infixToPostfix(string s) { stack<char> st; for(int i=0;i<s.length();i++) { if(isalpha(s[i])) { cout<<s[i]; } else if(s[i]==')') ...