Create 999.车的可用捕获量.js

Author: yinxin630

999.车的可用捕获量.js

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+/**
+ * @param {character[][]} board
+ * @return {number}
+ */
+var numRookCaptures = function(board) {
+    let result = 0;
+    for (let i = 0; i < board.length; i++) {
+        for (let j = 0; j < board[i].length; j++) {
+            if (board[i][j] === 'R') {
+                for (let di = i; di >= 0; di--) {
+                    if (board[di][j] === 'p') {
+                        result++;
+                        break;
+                    } else if (board[di][j] === 'B') {
+                        break;
+                    }
+                }
+                for (let di = i; di < board.length; di++) {
+                    if (board[di][j] === 'p') {
+                        result++;
+                        break;
+                    } else if (board[di][j] === 'B') {
+                        break;
+                    }
+                }
+                for (let dj = j; dj >= 0; dj--) {
+                    if (board[i][dj] === 'p') {
+                        result++;
+                        break;
+                    } else if (board[i][dj] === 'B') {
+                        break;
+                    }
+                }
+                for (let dj = j; dj < board[i].length; dj++) {
+                    if (board[i][dj] === 'p') {
+                        result++;
+                        break;
+                    } else if (board[i][dj] === 'B') {
+                        break;
+                    }
+                }
+            }
+        }
+    }
+    return result;
+};