LeetCode 1812: Determine Color of a Chessboard Square Solution
Master LeetCode problem 1812 (Determine Color of a Chessboard Square), 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 determine the color of a chessboard square, we can observe that the color of a square is determined by the sum of its row index and column index. If the sum is even, the square is white, and if the sum is odd, the square is black. We can use this observation to solve the problem by converting the given coordinates to numeric indices and then checking if the sum of the indices is even or odd.
- Convert the letter coordinate to a numeric index (0 to 7) representing the column.
- Convert the number coordinate to a numeric index (0 to 7) representing the row.
- Check if the sum of the row and column indices is even or odd to determine the color of the square.
Time Complexity
The time complexity of this algorithm is O(1) as it involves simple arithmetic operations to determine the color of the square.
Space Complexity
The space complexity of this algorithm is O(1) as we are not using any extra space that grows with the input size.
Solution Code
class Solution {
public boolean squareIsWhite(String coordinates) {
int col = coordinates.charAt(0) - 'a';
int row = coordinates.charAt(1) - '1';
return (col + row) % 2 == 0;
}
}Try It Yourself
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Frequently Asked Questions
How to solve LeetCode 1812 (Determine Color of a Chessboard Square)?
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What is the time complexity of LeetCode 1812 (Determine Color of a Chessboard Square)?
The time complexity for LeetCode 1812 (Determine Color of a Chessboard Square) varies by solution. Check the detailed explanation section for specific complexities in Java, C++, and Python implementations.
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