C++实现在二维数组中的查找

class Solution {

public:

    bool Find(int target, vector<vector<int> > array) {

        int rows = array.size();

        int cols = array[0].size();

        if(!array.empty() && rows > 0 && cols > 0){

            int row = 0;

            int col = cols - 1;

            while(row < rows && col >= 0){

                if(array[row][col] == target){

                    return true;

                }

                else if(array[row][col] > target){

                    --col;

                }

                else{

                    ++row;

                }

            }

        }

        return false;

    }

};