initial

1sem/adaptation courses/4/13.cpp

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+// ac_4_13.cpp
+// Горбацевич Андрей
+#include <iostream>
+#include <cmath>
+using namespace std;
+
+double xmi(double x, int N) {
+    double out = 0;
+    for (int i = 1; i <= N; i++) {
+        out += 1/pow(x, i);
+    }
+    return out;
+}
+
+double xi(double x, int N) {
+    double out = 1;
+    for (int i = 0; i <= N; i++) {
+        out *= (x - i);
+    }
+    return out;
+}
+
+int main() {
+    double x;
+    int N;
+    cout << "x, N >>>";
+    cin >> x >> N;
+    cout << "S= " << xmi(x, N) << endl;
+    cout << "P= " << xi(x, N) << endl;
+}