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程式語言 - LeetCode - C++ - 419. Battleships in a Board

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題目：


解答：

class Solution {
public:
    int countBattleships(vector<vector<char>>& board) {
        int ans = 0;
        int m = board.size();
        int n = board[0].size();

        for (int i = 0; i < m; ++i) {
            for (int j = 0; j < n; ++j) {
                if (board[i][j] != 'X') {
                    continue;
                }

                if (i > 0 && board[i - 1][j] == 'X') {
                    continue;
                }
                if (j > 0 && board[i][j - 1] == 'X') {
                    continue;
                }

                ans += 1;
            }
        }

        return ans;
    }
};