二维数组中的查找

#include<iostream>
#include<vector>
using namespace std;

class Solution {
public:
    bool Find(vector<vector<int> > array,int target) {
        int heng=0;
        int m=array.size();
        int shu=array[0].size()-1;
        while((heng<m&&shu>=0)){
            if(target<array[heng][shu]) shu--;
            else if(target>array[heng][shu]) heng++;
            else if(target==array[heng][shu]) return true;
        }
         return false;
    }
};