c2

1sem/programming basics/z5/15.cpp

@@ -1,25 +0,0 @@
-// pb_z5_15.cpp
-// Горбацевич Андрей
-#include <iostream>
-using namespace std;
-
-double ai(int);
-double s(int);
-
-int main() {
-    int N;
-    cout << "N >>>";
-    cin >> N;
-    cout << "S= " << ai(N);
-}
-
-double ai(int N) {
-    double out = 0;
-    for (int i = 1; i <= N; i++)
-        out += i * s(i);
-    return out;
-}
-
-double s(int i) {
-    return (i % 2? -1 : 1);
-}