game of life

class Solution {
public:
    void gameOfLife(vector<vector<int>>& board) {
        queue<int> temp_state;
        int row = board.size();
        int i,j;
        if(row < ) return;
        int col = board[].size();
        if(col <) return;
        for(i=;i<row;i++)
            for(j=;j<col;j++){
                int state_i_j = next_state(board,i,j);
                temp_state.push(state_i_j);
                if((j == col-)) {  //每行最后一个元素 更新
                if((i>=)){          //如果不是第一行，更新前一行
                    for(int z=;z<col;z++){
                        board[i-][z] = temp_state.front();
                        temp_state.pop();
                    }
                }
                if((i==row-)){  //如果是最后一行，更新当前行
                     for(int z=;z<col;z++){
                        board[i][z] = temp_state.front();
                        temp_state.pop();
                    }
                }
            }
         }
    }

    int next_state(vector<vector<int>>& board,int i,int j){
        int sum = ;

        int row = board.size();
        int col = board[].size();

        if(board[i][j] == ){
            if(i- >=){
                if(j->= && board[i-][j-] == ) sum++;
                if(board[i-][j] == ) sum++;
                if(j+<col && board[i-][j+] == ) sum++;
            }
            if(i+ < row){
                if(j->= && board[i+][j-] == ) sum++;
                if(board[i+][j] == ) sum++;
                if(j+<col && board[i+][j+] == ) sum++;
            }
            if(j->= && board[i][j-] == ) sum++;
            if(j+< col && board[i][j+] == ) sum++;
            if(sum== || sum ==) return ;
            return ;
        }

         if(board[i][j] == ){
            if(i- >=){
                if(j->= && board[i-][j-] == ) sum++;
                if(board[i-][j] == ) sum++;
                if(j+<col && board[i-][j+] == ) sum++;
            }
            if(i+ < row){
                if(j->= && board[i+][j-] == ) sum++;
                if(board[i+][j] == ) sum++;
                if(j+<col && board[i+][j+] == ) sum++;
            }
            if(j->= && board[i][j-] == ) sum++;
            if(j+< col && board[i][j+] == ) sum++;
            if(sum ==) return ;
            return ;
        }

    }
};