c2

1sem/adaptation courses/04/12.cpp

@@ -0,0 +1,25 @@
+// ac_4_12.cpp
+// Горбацевич Андрей
+#include <iostream>
+#include <cmath>
+using namespace std;
+
+double ak(double x, int k) {
+    return sqrt(x*x + pow(sin(k*M_PI_4), 2));
+}
+
+double sum(double x, int N) {
+    double out = 0;
+    for (int k = 1; k <= N; k++) {
+        out += ak(x, k);
+    }
+    return out;
+}
+
+int main() {
+    double x;
+    int N;
+    cout << "x, N >>>";
+    cin >> x >> N;
+    cout << "S= " << sum(x, N) << endl;
+}