pat 甲级 1005 Spell It Right

https://www.patest.cn/contests/pat-a-practise/1005

字符串处理
1. int是 2*10*9
long long是 9*10*19
题目要求 10*100 所以用char数组存起来
再遍历求和
2.map赋值要放在主函数中，不然会报错
3. sprintf数字串存入数字整型数组会报错（？）

#include 
#include 
#include 
#include 
#include  
#include 

using namespace std;

int sum;
char arr[110], num[10000];
char a[10][6]={"zero","one","two","three","four","five","six","seven","eight","nine"};
//map spell;

/*spell[0]="zero";
spell[1]="one";
spell[2]='two';
spell[3]='three';
spell[4]='four';
spell[5]='five';
spell[6]='six';
spell[7]='seven';
spell[8]='eight';
spell[9]='nine';*/


int main()
{

    cin >> arr;
    int l;
    l = strlen(arr);
    for(int i=0;i'0');
    }
    sprintf(num,"%d",sum);
    int l1,key=0;
    l1=strlen(num);
    for(int k=0; kif(key==0){
            cout << a[(num[k]-'0')];
            key=1;
        }
        else{
            cout << ' ' << a[(num[k]-'0')] ;
        }
    }
    return 0;
}