AcWing每日一题--拼写正确

https://www.acwing.com/problem/content/1479/

水题。

得到sum后可每一次提取个位数字，或直接将其to_string。

解法一：

 1 #include<iostream>
 2 #include<algorithm>
 3 using namespace std;
 4 string v[]={"zero","one","two","three","four","five","six","seven","eight","nine"};
 5 int main(void){
 6     string s;
 7     cin>>s;
 8     int sum=0;
 9     for(int i=0;i<s.size();i++){
10         sum+=s[i]-'0';
11     }
12     vector<string> res;
13     if(sum==0){
14         res.push_back(v[0]);
15     }
16     while(sum){
17         res.push_back(v[sum%10]);
18         sum/=10;
19     }
20     reverse(res.begin(),res.end());
21     for(int i=0;i<res.size();i++){
22         cout<<res[i]<<" ";
23     }
24     return 0;
25 }

解法二：

 1 #include<iostream>
 2 #include<algorithm>
 3 using namespace std;
 4 string v[]={"zero","one","two","three","four","five","six","seven","eight","nine"};
 5 int main(void){
 6     string s;
 7     cin>>s;
 8     int sum=0;
 9     for(int i=0;i<s.size();i++){
10         sum+=s[i]-'0';
11     }
12     string n=to_string(sum);
13     for(auto x:n){
14         cout<<v[x-'0']<<" ";
15     }
16     return 0;
17 }