P1634 禽兽的传染病

用unsigned long long也会爆🙄

#include <stdio.h>

#define scan(x) scanf("%lf", &x)
#define f(i, a, b) for (int i = a; i <= b; i++)
#define pn(x) printf("%.0lf", x)
#define IN freopen("in.txt", "r", stdin)
#define OUT freopen("out.txt", "w", stdout)


int main()
{
    //IN;OUT;
    double x, n,res=1;
    scan(x);
    scan(n);
    f(i,1,n){
        res *=(x+1);
    }
    pn(res);
    return 0;
}