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1sem/adaptation courses/5/15.cpp

@@ -0,0 +1,22 @@
+// ac_5_15.cpp
+// Горбацевич Андрей
+#include <iostream>
+using namespace std;
+
+double df(int N) {
+    double out = 1.;
+    double os = 0.;
+    for (int i = 1; i <= N; i++) {
+        os += i*i;
+        out *= os;
+    }
+    return out;
+}
+
+int main() {
+    int N;
+    cout << "N >>>";
+    cin >> N;
+    cout.setf(ios_base::fixed);
+    cout << "PS= " << df(N) << endl;
+}

1sem/adaptation courses/5/16.cpp

@@ -0,0 +1,32 @@
+// ac_5_16.cpp
+// Горбацевич Андрей
+#include <iostream>
+#include <cmath>
+using namespace std;
+
+int fk(int i) {
+    if ((i == 0) || (i == 1))
+        return 1;
+    int out = 1;
+    for (int j = 2; j <= i; j++) {
+        out *= j;
+    }
+    return out;
+}
+
+double df(int N, int M) {
+    double out = 0;
+    int fak = fk(M);
+    for (int k = M; k <= N; k++) {
+        out += k*k*log(fak);
+        fak *= k+1;
+    }
+    return out;
+}
+
+int main() {
+    int N, M;
+    cout << "N, M >>>";
+    cin >> N >> M;
+    cout << "S= " << df(N, M) << endl;
+}

1sem/adaptation courses/5/17.cpp

@@ -0,0 +1,29 @@
+// ac_5_17.cpp
+// Горбацевич Андрей
+#include <iostream>
+#include <cmath>
+#include <set>
+using namespace std;
+
+double df(int N) {
+    double out = 0.;
+    double i_ = 1;
+    for (int i = 1; i <= N; i++) {
+        i_ *= i;
+        double j_ = 1.;
+        double out_ = 1.;
+        for (int j = 1; j <= i; j++) {
+            j_ *= j;
+            out_ *= j_/i_;
+        }
+        out += out_;
+    }
+    return out;
+}
+
+int main() {
+    int N;
+    cout << "N >>>";
+    cin >> N;
+    cout << "SP= " << df(N) << endl;
+}