LeetCode 2682: Find the Losers of the Circular Game Solution
Master LeetCode problem 2682 (Find the Losers of the Circular Game), a easy challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.
2682. Find the Losers of the Circular Game
Problem Explanation
Explanation
To solve this problem, we can simulate the game as described in the problem statement. We can keep track of the friends who receive the ball and mark the losers who do not receive the ball at any point during the game. We iterate through the friends in a circular manner, passing the ball to the next friend based on the given steps k. Whenever a friend receives the ball for the second time, the game ends.
Time Complexity: O(n) Space Complexity: O(n)
Solution Code
class Solution {
public List<Integer> findTheLosers(int n, int k) {
List<Integer> losers = new ArrayList<>();
boolean[] receivedBall = new boolean[n + 1];
int currentFriend = 1;
for (int i = 1; i <= n; i++) {
if (receivedBall[currentFriend]) {
losers.add(currentFriend);
} else {
receivedBall[currentFriend] = true;
}
currentFriend = (currentFriend + k) % n;
if (currentFriend == 0) {
currentFriend = n;
}
}
return losers;
}
}Try It Yourself
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