import java.util.*;
public class Stackp{
static int Precedence(char ch){
switch (ch){
case '=':
return 1;
case '+':
case '-':
return 2;
case '*':
case '/':
return 3;
case '^':
return 4;
}
return -1;
}
Stack<Character> s = new Stack<>();
for(int i = 0;i< exp.length();i++){
char c = exp.charAt(i);
result += c;
} else if (c == '(')
s.push(c);
else if (c == ')')
{
while (!s.isEmpty() && s.peek() != '(')
result += s.pop();
if (!s.isEmpty() && s.peek() != '(')
return "Invalid Expression"; // invalid expression
else
s.pop();
}
else{
while(!s.empty() && Precedence(c) <= Precedence(s.peek()))
result += s.pop();
s.push(c);
}
}
while(!s.empty()){
result +=s.pop();
}
return result;
}
public static void main
(String []args
){
String result
= InfixToPosfix
("S=u*c^k/D-q*g^(n-b)");
}
}
{"html5":"htmlmixed","css":"css","javascript":"javascript","php":"php","python":"python","ruby":"ruby","lua":"text\/x-lua","bash":"text\/x-sh","go":"go","c":"text\/x-csrc","cpp":"text\/x-c++src","diff":"diff","latex":"stex","sql":"sql","xml":"xml","apl":"apl","asterisk":"asterisk","c_loadrunner":"text\/x-csrc","c_mac":"text\/x-csrc","coffeescript":"text\/x-coffeescript","csharp":"text\/x-csharp","d":"d","ecmascript":"javascript","erlang":"erlang","groovy":"text\/x-groovy","haskell":"text\/x-haskell","haxe":"text\/x-haxe","html4strict":"htmlmixed","java":"text\/x-java","java5":"text\/x-java","jquery":"javascript","mirc":"mirc","mysql":"sql","ocaml":"text\/x-ocaml","pascal":"text\/x-pascal","perl":"perl","perl6":"perl","plsql":"sql","properties":"text\/x-properties","q":"text\/x-q","scala":"scala","scheme":"text\/x-scheme","tcl":"text\/x-tcl","vb":"text\/x-vb","verilog":"text\/x-verilog","yaml":"text\/x-yaml","z80":"text\/x-z80"}