B2027 计算球的体积

R71618584

Luogu/B2027/B2027.cpp

@@ -0,0 +1,17 @@
+#include <iomanip>
+#include <iostream>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+const double pi = 3.14;
+
+double r;
+
+int main() {
+    std::ios::sync_with_stdio(false);
+    cin >> r;
+    cout << std::fixed << std::setprecision(5) << 4.0 / 3.0 * pi * r * r * r << endl;
+    return 0;
+}