From f13dfb8c438c3c565ed4ede430e6046f54e5c9d5 Mon Sep 17 00:00:00 2001
From: Haidong Ji
Date: Sat, 9 May 2020 15:32:19 -0500
Subject: Machine rebuilt so I had to reconfig Eclipse and googletest for C++
 dev work on Linux

---
 Sources/GraphAlgo.cpp | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 Sources/GraphAlgo.cpp

(limited to 'Sources/GraphAlgo.cpp')

diff --git a/Sources/GraphAlgo.cpp b/Sources/GraphAlgo.cpp
new file mode 100644
index 0000000..d04987f
--- /dev/null
+++ b/Sources/GraphAlgo.cpp
@@ -0,0 +1,47 @@
+#include <iostream>
+#include <vector>
+#include <algorithm>
+#include <gtest/gtest.h>
+
+using std::vector;
+
+static long getMaxDotProduct(vector<int> a, vector<int> b) {
+	std::sort(a.begin(), a.end());
+	std::sort(b.begin(), b.end());
+	long result = 0;
+	for (int i = 0; i < b.size(); i++) {
+		result = (long) a[i]*b[i]+result;
+	}
+	return result;
+}
+
+TEST(MaxDotProduct, Max1) {
+	vector<int> a = { 60, 100, 120 };
+	vector<int> b = { 20, 50, 30 };
+	ASSERT_EQ(getMaxDotProduct(a, b), 10200);
+}
+
+//TEST(MaxDotProduct, Max2) {
+//	vector<int> a = { 23 };
+//	vector<int> b = { 39 };
+//	ASSERT_EQ(getMaxDotProduct(a, b), 897);
+//}
+//
+//TEST(MaxDotProduct, Max3) {
+//	vector<int> a = { 1,3,-5 };
+//	vector<int> b = { -2,4,1 };
+//	ASSERT_EQ(getMaxDotProduct(a, b), 23);
+//}
+
+//int main() {
+//  size_t n;
+//  std::cin >> n;
+//  vector<int> a(n), b(n);
+//  for (size_t i = 0; i < n; i++) {
+//    std::cin >> a[i];
+//  }
+//  for (size_t i = 0; i < n; i++) {
+//    std::cin >> b[i];
+//  }
+//  std::cout << getMaxDotProduct(a, b) << std::endl;
+//}
-- 
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