Output Limited Exceed如何根治？

[QingHuan520]

我测试输入十位以上的数字则为死循环，可是数组已经开到了90，为什么还有这种情况啊？求指教



#include <iostream>
using namespace std;

int main()
{
int N = 1;
int m = 3;

while (N != 0)
{
cin >> N;
int n[90];
int sum = N;


while (sum >= 10)
{
if (N != 0)
{
int temp = sum;
int count = 0;
for (int i = 0; i < 90; i++)
{
if (temp > 0)
{
n[i] = temp % 10;
temp = temp / 10;
count++;
}
else
break;
}
sum = 0;
for (int j = 0; j < count; j++)
{
sum += n[j];
}
}

}

if (N != 0)
{
cout << sum << endl;
}


}
return 0;
}