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Consider the following pseudocode that uses a stack
declare a stack of characters
while ( there are more characters in the word to read )
{
   read a character
   push the character on the stack
}
while ( the stack is not empty )
{
   pop a character off the stack
   write the character to the screen
}
What is output for input “geeksquiz”?
  • a)
    geeksquizgeeksquiz
  • b)
    ziuqskeeg
  • c)
    geeksquiz
  • d)
    ziuqskeegziuqskeeg
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Consider the following pseudocode that uses a stackdeclare a stack of ...
Since the stack data structure follows LIFO order. When we pop() items from stack, they are popped in reverse order of their insertion (or push())
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Community Answer
Consider the following pseudocode that uses a stackdeclare a stack of ...

Explanation:

Input: "geeksquiz"

- The characters are read one by one from left to right and pushed onto the stack.
- Once all characters are pushed onto the stack, they are popped out and written to the screen in reverse order.

Output: "ziuqskeeg"

- The characters are popped from the stack in LIFO (Last In First Out) order, resulting in the reversed order of the input word.
- Therefore, the output for the input "geeksquiz" is "ziuqskeeg".
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