剑指 Offer 17. 打印从1到最大的n位

class Solution {
    
    
public:
    vector<int> printNumbers(int n) {
    
    
        vector<int>res;
        if(n == 0){
    
    
            return res;
        }
        int m =pow(10, n);      
        for(int i = 1; i < m ; i++){
    
    
            res.push_back(i);
        }
        return res;
    }
};