Reverse a string using Stack

PROBLEM :

An string of words is given, the task is to reverse the string using stack.

Input:
The first line of input will contains an integer T denoting the no of test cases . Then T test cases follow. Each test case contains a string s of words without spaces.

Output:
For each test case ,print the reverse of the string in new line.

Constraints:
1<=T<=100
1<=length of the string <=100

Example:
Input:
2
GeeksQuiz
GeeksforGeeks

Output:
ziuQskeeG
skeeGrofskeeG

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SIMPLE c++ IMPLEMENTATION :
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void reverse(char *str, int len)
{
    stack<char> sta ;
    for(int i=0;i<len;i++)
        sta.push(str[i]) ;
   
    for(int i=0;i<len;i++){
        str[i]=sta.top() ;
        sta.pop() ;
    }
}

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