[Solved] Given this pseudocode for a game state manager:state = 'MENU' function changeState(newState) { if (newState == 'PLAYING' && state == 'MENU') { state = newState } else if (newState == 'PAUSED' &&... | LLD

LLD - Design — Chess Game

Given this pseudocode for a game state manager:

state = 'MENU'
function changeState(newState) {
  if (newState == 'PLAYING' && state == 'MENU') {
    state = newState
  } else if (newState == 'PAUSED' && state == 'PLAYING') {
    state = newState
  } else if (newState == 'MENU') {
    state = newState
  }
}
changeState('PLAYING')
changeState('PAUSED')
changeState('MENU')

What is the final value of state?

A'PAUSED'

BUndefined

C'PLAYING'

D'MENU'

Step-by-Step Solution

Solution:

Step 1: Trace state changes step-by-step
Initial state is 'MENU'. changeState('PLAYING') sets state to 'PLAYING' because condition matches. Then changeState('PAUSED') sets state to 'PAUSED'. Finally, changeState('MENU') sets state back to 'MENU'.
Step 2: Confirm final state
After all calls, state is 'MENU'.
Final Answer:
'MENU' -> Option D
Quick Check:
Final state after calls = 'MENU' [OK]

Quick Trick: Trace each state change carefully in order [OK]

Common Mistakes:

Assuming state stays at 'PAUSED' after last call
Ignoring the last changeState call
Confusing conditions in if statements

Master "Design — Chess Game" in LLD

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Arch Try Challenge Design Recall Scale

More LLD Quizzes

Given this pseudocode for a game state manager:

Step 1: Trace state changes step-by-step

Step 2: Confirm final state

Final Answer:

Quick Check:

Want More Practice?