From 5b33b014a0e62e7eebb9fcedb8f6576c046c4c55 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Borba?= <andre.borbaaf2b@gmail.com>
Date: Sat, 19 Sep 2026 09:29:49 -0300
Subject: [PATCH] =?UTF-8?q?=F0=9F=9F=A2=20Port=20problem=202703=20(Return?=
 =?UTF-8?q?=20Length=20of=20Arguments=20Passed)=20from=20Swift=20to=20C++2?=
 =?UTF-8?q?3?=
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Replaces swift/2703.swift with
solutions/2701-2800/2703-return-length-of-arguments-passed/. The
original LeetCode problem is JavaScript-specific (arguments.length);
modeled here as a function over an initializer_list<std::any>.
---
 .../README.md                                     | 13 +++++++++++++
 .../solution.cpp                                  |  9 +++++++++
 .../solution.hpp                                  | 13 +++++++++++++
 .../test.cpp                                      | 12 ++++++++++++
 swift/2703.swift                                  | 15 ---------------
 5 files changed, 47 insertions(+), 15 deletions(-)
 create mode 100644 solutions/2701-2800/2703-return-length-of-arguments-passed/README.md
 create mode 100644 solutions/2701-2800/2703-return-length-of-arguments-passed/solution.cpp
 create mode 100644 solutions/2701-2800/2703-return-length-of-arguments-passed/solution.hpp
 create mode 100644 solutions/2701-2800/2703-return-length-of-arguments-passed/test.cpp
 delete mode 100644 swift/2703.swift

diff --git a/solutions/2701-2800/2703-return-length-of-arguments-passed/README.md b/solutions/2701-2800/2703-return-length-of-arguments-passed/README.md
new file mode 100644
index 0000000..4cdfba5
--- /dev/null
+++ b/solutions/2701-2800/2703-return-length-of-arguments-passed/README.md
@@ -0,0 +1,13 @@
+# 2703. Return Length of Arguments Passed
+
+[LeetCode problem 2703](https://leetcode.com/problems/return-length-of-arguments-passed/)
+
+- **Difficulty**: Easy
+- **Tags**: javascript
+
+## Description
+
+Write a function that accepts any number of arguments of any type and
+returns how many arguments it received. The original problem is
+JavaScript-specific (it hands back `arguments.length`); here it's modeled as
+a function taking a brace-init list of `std::any` values.
diff --git a/solutions/2701-2800/2703-return-length-of-arguments-passed/solution.cpp b/solutions/2701-2800/2703-return-length-of-arguments-passed/solution.cpp
new file mode 100644
index 0000000..6cb3553
--- /dev/null
+++ b/solutions/2701-2800/2703-return-length-of-arguments-passed/solution.cpp
@@ -0,0 +1,9 @@
+#include "solution.hpp"
+
+namespace leetcode::p2703 {
+
+std::size_t solve(std::initializer_list<std::any> args) {
+    return args.size();
+}
+
+} // namespace leetcode::p2703
diff --git a/solutions/2701-2800/2703-return-length-of-arguments-passed/solution.hpp b/solutions/2701-2800/2703-return-length-of-arguments-passed/solution.hpp
new file mode 100644
index 0000000..2a170a6
--- /dev/null
+++ b/solutions/2701-2800/2703-return-length-of-arguments-passed/solution.hpp
@@ -0,0 +1,13 @@
+#pragma once
+
+#include <any>
+#include <cstddef>
+#include <initializer_list>
+
+namespace leetcode::p2703 {
+
+// optimized: O(1) time, O(1) space — an initializer_list already knows its
+// size.
+std::size_t solve(std::initializer_list<std::any> args);
+
+} // namespace leetcode::p2703
diff --git a/solutions/2701-2800/2703-return-length-of-arguments-passed/test.cpp b/solutions/2701-2800/2703-return-length-of-arguments-passed/test.cpp
new file mode 100644
index 0000000..9cfb785
--- /dev/null
+++ b/solutions/2701-2800/2703-return-length-of-arguments-passed/test.cpp
@@ -0,0 +1,12 @@
+#include <any>
+#include <string>
+
+#include <catch2/catch_test_macros.hpp>
+
+#include "solution.hpp"
+
+TEST_CASE("Problem 2703", "[p2703]") {
+    CHECK(leetcode::p2703::solve({std::any{}, std::string("hello"), 2}) == 3);
+    CHECK(leetcode::p2703::solve({}) == 0);
+    CHECK(leetcode::p2703::solve({1, 2, 3, std::any{}, 5}) == 5);
+}
diff --git a/swift/2703.swift b/swift/2703.swift
deleted file mode 100644
index a19e9ed..0000000
--- a/swift/2703.swift
+++ /dev/null
@@ -1,15 +0,0 @@
-func argumentsLength(args: [Any?]) -> Int {
-    return args.count
-}
-
-let tests = [
-    argumentsLength(args: [nil, "hello", 2]) == 3,
-    argumentsLength(args: []) == 0,
-    argumentsLength(args: [1, 2, 3, nil, 5]) == 5
-]
-
-if tests.allSatisfy({ $0 == true }) {
-    print("All tests passed")
-} else {
-    print("Some tests failed")
-}