题解 | A + B

#include<bits/stdc++.h>
using namespace std;

string str[10] = {"zero","one","two","three","four","five","six","seven","eight","nine"};

int strtonum(string a)
{
    for(int i = 0;i<10;i++)
    {
        if(a == str[i])
        {
            return i;
        }
    }
    return -1;

}
int main()
{
    string str;
    while(cin>>str)
    {
        int a = strtonum(str);
        cin>>str;
        while(str != "+")
        {
            a *=10;
            a += strtonum(str);
            cin>>str;
        }
        int b = 0;
        cin>>str;
        while(str != "=")
        {
            b *= 10;
            b += strtonum(str);
            cin>>str;
        }
        if(a != 0 || b != 0)
        {
            cout<<a+b<<endl;
        }
        
    }

    return 0;
}