有高手再不？
帮我看看，我这个程序有什么地方错了，调试的时候没有抱错，但就是还没运行完就停了
int main()
{
    int cumu(int k);
   double power(double x,int k);
   double x;
   cout<<"input x"<<endl;
   cin>>x;
    double g=0.0,t=x,p=0.000001;
    int n=1;
    do
    {
        g=g+t;
        n++;
        t=power(-1,n-1)*power(x,2*n-1)/cumu(2*n-1);
    }while(fabs(t)>=p);
    cout<<g<<endl;
}
//------------------------------------------------------------------------------------------------------------------
int cumu(int k)
{
    int g=1,i=1;
    while(i<=k)
    {
        g=g*i;    
        i++;
    }
    return g;
}
//------------------------------------------------------------------------------------------------------------------
double power(double x,int k)
{
    double h=1.0;
    int i=1;
    while(i<=k)
    {
        h=h*x;
        i++;
    }
    return h;
}