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急 求救:哪位大虾能帮小弟的忙啊 !!#include<stdio.h>
int f(int n)
{
int sum=0;
if(n>=0&&n<=9)
return n;
do{
sum+=n%10;
n=n/10;
}while(n>0);
return f(sum);
}
void main()
{
int n;
scanf("%d",&n);
while(n!=0)
{
printf("%d\n",f(n));
scanf("%d",&n);
}
}
为什么总是超时跟超出内存限制啊
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