PTA(Advanced Level) 1005：Spell It Right（C语言实现）

分析：
sprintf(str,"%d",n);//将整数n转换为字符串存储到字符数组str中
sscanf(str,"%s",&n);//将字符串str转换为整型变量存储到n中

#include <stdio.h>

int main()
{
	int i,sum=0;
	char word[10][6]={"zero","one","two","three","four","five","six","seven","eight","nine"};
	char res[1000]="",num[100]="";//数组要足够大
	gets(res);
	for(i=0; res[i]; i++)
		sum+=res[i]-'0';
	sprintf(num,"%d",sum);
	for(i=0; num[i]; i++)
		i==0?printf("%s",word[num[i]-'0']):printf(" %s",word[num[i]-'0']);
	return 0;
}