Inner product

homework/inner-product/CMakeLists.txt

@@ -20,7 +20,6 @@ enable_testing()
 
 add_executable(${PROJECT_NAME} main.cpp arithmeticAverage.cpp)
 add_executable(${PROJECT_NAME}-ut test.cpp arithmeticAverage.cpp)
-
 target_link_libraries(${PROJECT_NAME}-ut gtest_main)
 
 include(GoogleTest)

homework/inner-product/arithmeticAverage.cpp

@@ -0,0 +1,25 @@
+#include "arithmeticAverage.hpp"
+#include <cmath>
+#include <numeric>
+
+double ArithmeticAverage(const std::vector<int>& numbersA, const std::vector<int>& numbersB) {
+    double sum = std::transform_reduce(
+        begin(numbersA), end(numbersA),
+        begin(numbersB),
+        0.0,
+        std::plus<int>(),
+        std::plus<int>());
+
+    return sum / (numbersA.size() + numbersB.size());
+}
+
+double Distance(const std::vector<int>& numbersA, const std::vector<int>& numbersB) {
+    double sumOfSquares = std::transform_reduce(
+        begin(numbersA), end(numbersA),
+        begin(numbersB),
+        0.0,
+        std::plus<int>(),
+        [](const auto first, const auto second) { return (first - second) * (first - second); });
+
+    return std::sqrt(sumOfSquares);
+}

homework/inner-product/arithmeticAverage.hpp

@@ -0,0 +1,5 @@
+#pragma once
+#include <vector>
+
+double ArithmeticAverage(const std::vector<int>&, const std::vector<int>&);
+double Distance(const std::vector<int>&, const std::vector<int>&);

homework/inner-product/main.cpp

@@ -0,0 +1,4 @@
+int main()
+{
+
+}