add: 220414-CN (2) [cpp]

cpp/2204/220414-CN.cpp

@@ -4,4 +4,18 @@
  * A customer's wealth is the amount of money they have in all their bank accounts. The richest customer is the customer that has the maximum wealth.
  *
  * Refer: 2201/220131.cpp
- */
+ * 100% STL implementation this time!
+ */
+
+#include <vector>
+#include <numeric>
+#include <algorithm>
+
+class Solution {
+public:
+	static int maximumWealth(const std::vector<std::vector<int>>& accounts) {
+		std::vector<int> tmp;
+		std::for_each(accounts.cbegin(), accounts.cend(), [&](const std::vector<int>& x) { tmp.push_back(std::accumulate(x.cbegin(), x.cend(), 0)); });
+		return *std::max_element(tmp.cbegin(), tmp.cend());
+	}
+};