Initial commit

Miscellaneous/sum.cpp

@@ -0,0 +1,20 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main(void) {
+	int n;
+	double sum = 0.0;
+	double sign = 1.0;
+
+	scanf("%d", &n);
+
+	for (int i = 1; i <= n; i++) {
+		sum += sign / i;
+		sign = -sign;
+	}
+
+	printf("f (%d) = %f\n", n, sum);
+
+	return 0;
+}