metall(!!!!)
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#include <iostream>
#include <math.h>
using namespace std;
int main() {
double i, a, x, sum, n, res;
res = 1;
a = 0;
cin >> n >> x;
if (1 < n && n < 10) {
for (i = 1; i <=n; i++) {
res = res * i;
a = a+ pow(x, i) / res;
}
a++;
cout << a <<endl;
}
return 0;
}
Cpp
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