LeetCode 2923: Find Champion I Solution
Master LeetCode problem 2923 (Find Champion I), 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.
Problem Explanation
Explanation
To find the champion team, we can iterate through each team and check if there is no other team stronger than it. This can be done by checking the corresponding row in the grid matrix. If all elements in a row are 0 except for the diagonal element, then that team is the champion.
- Time complexity: O(n^2) where n is the number of teams
- Space complexity: O(1)
Solution Code
class Solution {
public int findChampion(int[][] grid) {
for (int i = 0; i < grid.length; i++) {
boolean isChampion = true;
for (int j = 0; j < grid[i].length; j++) {
if (i != j && grid[i][j] == 1) {
isChampion = false;
break;
}
}
if (isChampion) {
return i;
}
}
return -1; // No champion found
}
}Try It Yourself
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