public class Solution {//解法一:贪心算法求解public int canCompleteCircuit(int[] gas, int[] cost) {int total=0,sum=0;int index=-1;for(int i=0;i!=gas.length;i++){ sum+=gas[i]-cost[i];total+=gas[i]-cost[i];if(s
题目: 题解: class Solution:def solve(self, board: List[List[str]]) -> None:if not board:returnn, m = len(board), len(board[0])que = collections.deque()for i in range(n):if board[i][0] == "O":que.appen
class Solution {public:int rows, columns;void solve(vector<vector<char>>& board) {rows = board.size();columns = board[0].size();for(auto i = 0; i < rows; ++i){dfs(board, i, 0); //左边界dfs(board, i, c