add: 230418

cpp/2304/230418.cpp

@@ -0,0 +1,35 @@
+#include <algorithm>
+#include <iterator>
+#include <ranges>
+#include <string>
+#include <iostream>
+
+/**
+ * 1768. Merge Strings Alternately
+ *
+ * You are given two strings word1 and word2. Merge the strings by adding letters in alternating order, starting with word1. If a string is longer than the other, append the additional letters onto the end of the merged string.
+ * Return the merged string.
+ */
+
+class Solution {
+	using S = std::string;
+	using CSR = S const&;
+public:
+	static S mergeAlternately(CSR, CSR);
+};
+
+std::string Solution::mergeAlternately(CSR s, CSR t) {
+	const int m = s.length(), n = t.length(), k = std::min(m, n);
+	std::string ret;
+	for (int i = 0; i < k; ++i)
+		ret.push_back(s[i]), ret.push_back(t[i]);
+	for (int i = k; i < m; ++i)
+		ret.push_back(s[i]);
+	for (int i = k; i < n; ++i)
+		ret.push_back(t[i]);
+	return ret;
+}
+
+int main() {
+	std::cout << Solution::mergeAlternately("ab", "pqrs");
+}

cpp/2304/CMakeLists.txt

@@ -4,4 +4,4 @@ PROJECT(2304)
 SET(CMAKE_CXX_STANDARD 23)
 SET(CMAKE_EXPORT_COMPILE_COMMANDS true)
 
-ADD_EXECUTABLE(2304 230417-CN.cpp)
+ADD_EXECUTABLE(2304 230418.cpp)