二维数组中的查找

class Solution {
public:
    bool Find(int target, vector<vector<int> > array) {
        // 1  3  4  5
        // 2  5  8  9
        // 5  6  11 13
        // 8  9  12 15
        // test case: target = 11
        
        int row_count = array.size();
        if(row_count <= 0)
            return false;
        
        int col_count = array[0].size();
        if(col_count <= 0)
            return false;
        
        int row = 0;
        int col = col_count - 1;
        
        while(row < row_count && col >= 0)
        {
            if(array[row][col] == target)
                return true;
            else if(array[row][col] < target)
                row++;
            else
                col--;
        }
        
        return false;
    }
};