mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-09-13 03:11:42 +08:00
批量更新数据
This commit is contained in:
@@ -1,33 +1,47 @@
|
||||
<p>On an <code>8 x 8</code> chessboard, there is <strong>exactly one</strong> white rook <code>'R'</code> and some number of white bishops <code>'B'</code>, black pawns <code>'p'</code>, and empty squares <code>'.'</code>.</p>
|
||||
<p>You are given an <code>8 x 8</code> <strong>matrix</strong> representing a chessboard. There is <strong>exactly one</strong> white rook represented by <code>'R'</code>, some number of white bishops <code>'B'</code>, and some number of black pawns <code>'p'</code>. Empty squares are represented by <code>'.'</code>.</p>
|
||||
|
||||
<p>When the rook moves, it chooses one of four cardinal directions (north, east, south, or west), then moves in that direction until it chooses to stop, reaches the edge of the board, captures a black pawn, or is blocked by a white bishop. A rook is considered <strong>attacking</strong> a pawn if the rook can capture the pawn on the rook's turn. The <strong>number of available captures</strong> for the white rook is the number of pawns that the rook is <strong>attacking</strong>.</p>
|
||||
<p>A rook can move any number of squares horizontally or vertically (up, down, left, right) until it reaches another piece <em>or</em> the edge of the board. A rook is <strong>attacking</strong> a pawn if it can move to the pawn's square in one move.</p>
|
||||
|
||||
<p>Return <em>the <strong>number of available captures</strong> for the white rook</em>.</p>
|
||||
<p>Note: A rook cannot move through other pieces, such as bishops or pawns. This means a rook cannot attack a pawn if there is another piece blocking the path.</p>
|
||||
|
||||
<p>Return the <strong>number of pawns</strong> the white rook is <strong>attacking</strong>.</p>
|
||||
|
||||
<p> </p>
|
||||
<p><strong class="example">Example 1:</strong></p>
|
||||
<img alt="" src="https://assets.leetcode.com/uploads/2019/02/20/1253_example_1_improved.PNG" style="width: 300px; height: 305px;" />
|
||||
<pre>
|
||||
<strong>Input:</strong> board = [[".",".",".",".",".",".",".","."],[".",".",".","p",".",".",".","."],[".",".",".","R",".",".",".","p"],[".",".",".",".",".",".",".","."],[".",".",".",".",".",".",".","."],[".",".",".","p",".",".",".","."],[".",".",".",".",".",".",".","."],[".",".",".",".",".",".",".","."]]
|
||||
<strong>Output:</strong> 3
|
||||
<strong>Explanation:</strong> In this example, the rook is attacking all the pawns.
|
||||
</pre>
|
||||
<div class="example-block">
|
||||
<p><strong>Input:</strong> <span class="example-io">board = [[".",".",".",".",".",".",".","."],[".",".",".","p",".",".",".","."],[".",".",".","R",".",".",".","p"],[".",".",".",".",".",".",".","."],[".",".",".",".",".",".",".","."],[".",".",".","p",".",".",".","."],[".",".",".",".",".",".",".","."],[".",".",".",".",".",".",".","."]]</span></p>
|
||||
|
||||
<p><strong>Output:</strong> <span class="example-io">3</span></p>
|
||||
|
||||
<p><strong>Explanation:</strong></p>
|
||||
|
||||
<p>In this example, the rook is attacking all the pawns.</p>
|
||||
</div>
|
||||
|
||||
<p><strong class="example">Example 2:</strong></p>
|
||||
<img alt="" src="https://assets.leetcode.com/uploads/2019/02/19/1253_example_2_improved.PNG" style="width: 300px; height: 306px;" />
|
||||
<pre>
|
||||
<strong>Input:</strong> board = [[".",".",".",".",".",".",".","."],[".","p","p","p","p","p",".","."],[".","p","p","B","p","p",".","."],[".","p","B","R","B","p",".","."],[".","p","p","B","p","p",".","."],[".","p","p","p","p","p",".","."],[".",".",".",".",".",".",".","."],[".",".",".",".",".",".",".","."]]
|
||||
<strong>Output:</strong> 0
|
||||
<strong>Explanation:</strong> The bishops are blocking the rook from attacking any of the pawns.
|
||||
</pre>
|
||||
<div class="example-block">
|
||||
<p><strong>Input:</strong> <span class="example-io">board = [[".",".",".",".",".",".","."],[".","p","p","p","p","p",".","."],[".","p","p","B","p","p",".","."],[".","p","B","R","B","p",".","."],[".","p","p","B","p","p",".","."],[".","p","p","p","p","p",".","."],[".",".",".",".",".",".",".","."],[".",".",".",".",".",".",".","."]]</span></p>
|
||||
|
||||
<p><strong>Output:</strong> <span class="example-io">0</span></p>
|
||||
|
||||
<p><strong>Explanation:</strong></p>
|
||||
|
||||
<p>The bishops are blocking the rook from attacking any of the pawns.</p>
|
||||
</div>
|
||||
|
||||
<p><strong class="example">Example 3:</strong></p>
|
||||
<img alt="" src="https://assets.leetcode.com/uploads/2019/02/20/1253_example_3_improved.PNG" style="width: 300px; height: 305px;" />
|
||||
<pre>
|
||||
<strong>Input:</strong> board = [[".",".",".",".",".",".",".","."],[".",".",".","p",".",".",".","."],[".",".",".","p",".",".",".","."],["p","p",".","R",".","p","B","."],[".",".",".",".",".",".",".","."],[".",".",".","B",".",".",".","."],[".",".",".","p",".",".",".","."],[".",".",".",".",".",".",".","."]]
|
||||
<strong>Output:</strong> 3
|
||||
<strong>Explanation:</strong> The rook is attacking the pawns at positions b5, d6, and f5.
|
||||
</pre>
|
||||
<div class="example-block">
|
||||
<p><strong>Input:</strong> <span class="example-io">board = [[".",".",".",".",".",".",".","."],[".",".",".","p",".",".",".","."],[".",".",".","p",".",".",".","."],["p","p",".","R",".","p","B","."],[".",".",".",".",".",".",".","."],[".",".",".","B",".",".",".","."],[".",".",".","p",".",".",".","."],[".",".",".",".",".",".",".","."]]</span></p>
|
||||
|
||||
<p><strong>Output:</strong> <span class="example-io">3</span></p>
|
||||
|
||||
<p><strong>Explanation:</strong></p>
|
||||
|
||||
<p>The rook is attacking the pawns at positions b5, d6, and f5.</p>
|
||||
</div>
|
||||
|
||||
<p> </p>
|
||||
<p><strong>Constraints:</strong></p>
|
||||
|
||||
Reference in New Issue
Block a user