Infix to Postfix Conversion

You are provided with a string EXP which represents a valid infix expression. Your task is to convert this given infix expression into a postfix expression.

Explanation:

An infix expression is of the form a op b where the operator is placed between the operands. Conversely, a postfix expression is of the form a b op where the operator is placed after the operands.

Input:

The first line of input contains an integer ‘T’ representing the number of test cases. Each test case contains one string ‘EXP’, a valid infix expression.

Output:

For each test case, output the corresponding postfix expression on a new line.

Example:

Input:

EXP = ‘3+4*8’

Output:

3 4 8 * +

Constraints:

1

Question

Infix to Postfix Conversion

You are provided with a string EXP which represents a valid infix expression. Your task is to convert this given infix expression into a postfix expression.

Explanation:

An infix expression is of the form a op b where the operator is placed between the operands. Conversely, a postfix expression is of the form a b op where the operator is placed after the operands.

Input:

The first line of input contains an integer ‘T’ representing the number of test cases. Each test case contains one string ‘EXP’, a valid infix expression.

Output:

For each test case, output the corresponding postfix expression on a new line.

Example:

Input:

EXP = ‘3+4*8’

Output:

3 4 8 * +

Constraints:

1 <= T <= 10
1 <= N <= 5000 where N is the length of EXP
The expression contains digits, lowercase English letters, parentheses (), and operators +, -, *, /, ^
Time Limit: 1 sec

Note:

You are not required to print anything. Implement the function as specified.

Accepted Answer

Convert infix expression to postfix expression.

Use a stack to keep track of operators and operands.
Follow the rules of precedence for operators.
Handle parentheses by pushing them onto the stack.
Pop operators from the stack based on precedence.
Append operands and operators to the postfix expression.