From 19954e38e6e79a5a9a24e622101c55b64fea821d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Borba?= <andre.borbaaf2b@gmail.com>
Date: Sat, 19 Sep 2026 09:30:27 -0300
Subject: [PATCH] =?UTF-8?q?=F0=9F=9F=A2=20Port=20problem=203110=20(Score?=
 =?UTF-8?q?=20of=20a=20String)=20from=20Swift=20to=20C++23?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Replaces swift/3110.swift with
solutions/3101-3200/3110-score-of-a-string/.
---
 .../3110-score-of-a-string/README.md          | 11 +++++++++
 .../3110-score-of-a-string/solution.cpp       | 19 +++++++++++++++
 .../3110-score-of-a-string/solution.hpp       | 11 +++++++++
 .../3101-3200/3110-score-of-a-string/test.cpp |  8 +++++++
 swift/3110.swift                              | 24 -------------------
 5 files changed, 49 insertions(+), 24 deletions(-)
 create mode 100644 solutions/3101-3200/3110-score-of-a-string/README.md
 create mode 100644 solutions/3101-3200/3110-score-of-a-string/solution.cpp
 create mode 100644 solutions/3101-3200/3110-score-of-a-string/solution.hpp
 create mode 100644 solutions/3101-3200/3110-score-of-a-string/test.cpp
 delete mode 100644 swift/3110.swift

diff --git a/solutions/3101-3200/3110-score-of-a-string/README.md b/solutions/3101-3200/3110-score-of-a-string/README.md
new file mode 100644
index 0000000..b999986
--- /dev/null
+++ b/solutions/3101-3200/3110-score-of-a-string/README.md
@@ -0,0 +1,11 @@
+# 3110. Score of a String
+
+[LeetCode problem 3110](https://leetcode.com/problems/score-of-a-string/)
+
+- **Difficulty**: Easy
+- **Tags**: string
+
+## Description
+
+Given a string `s`, its score is the sum of the absolute difference between
+the ASCII values of every pair of adjacent characters.
diff --git a/solutions/3101-3200/3110-score-of-a-string/solution.cpp b/solutions/3101-3200/3110-score-of-a-string/solution.cpp
new file mode 100644
index 0000000..9aa3344
--- /dev/null
+++ b/solutions/3101-3200/3110-score-of-a-string/solution.cpp
@@ -0,0 +1,19 @@
+#include "solution.hpp"
+
+#include <cstdlib>
+#include <iterator>
+
+namespace leetcode::p3110 {
+
+int solve(const std::string& s) {
+    int score = 0;
+
+    for (int i = 0; i + 1 < std::ssize(s); ++i) {
+        score += std::abs(static_cast<unsigned char>(s.at(static_cast<std::size_t>(i))) -
+                          static_cast<unsigned char>(s.at(static_cast<std::size_t>(i) + 1)));
+    }
+
+    return score;
+}
+
+} // namespace leetcode::p3110
diff --git a/solutions/3101-3200/3110-score-of-a-string/solution.hpp b/solutions/3101-3200/3110-score-of-a-string/solution.hpp
new file mode 100644
index 0000000..b502954
--- /dev/null
+++ b/solutions/3101-3200/3110-score-of-a-string/solution.hpp
@@ -0,0 +1,11 @@
+#pragma once
+
+#include <string>
+
+namespace leetcode::p3110 {
+
+// optimized: O(n) time, O(1) space — sum |s[i] - s[i+1]| over adjacent
+// characters.
+int solve(const std::string& s);
+
+} // namespace leetcode::p3110
diff --git a/solutions/3101-3200/3110-score-of-a-string/test.cpp b/solutions/3101-3200/3110-score-of-a-string/test.cpp
new file mode 100644
index 0000000..5d96bff
--- /dev/null
+++ b/solutions/3101-3200/3110-score-of-a-string/test.cpp
@@ -0,0 +1,8 @@
+#include <catch2/catch_test_macros.hpp>
+
+#include "solution.hpp"
+
+TEST_CASE("Problem 3110", "[p3110]") {
+    CHECK(leetcode::p3110::solve("hello") == 13);
+    CHECK(leetcode::p3110::solve("zaz") == 50);
+}
diff --git a/swift/3110.swift b/swift/3110.swift
deleted file mode 100644
index 5493960..0000000
--- a/swift/3110.swift
+++ /dev/null
@@ -1,24 +0,0 @@
-func scoreOfString(_ s: String) -> Int {
-    var score = 0
-
-    let characters = Array(s)
-    for i in 0..<characters.count - 1 {
-        let current = characters[i].asciiValue
-        let next = characters[i + 1].asciiValue
-        let diff = abs(Int(current!) - Int(next!))
-        score += diff
-    }
-
-    return score
-}
-
-let bateryOfTests: [Bool] = [
-    scoreOfString("zaz") == 50,
-    scoreOfString("hello") == 13
-]
-
-if bateryOfTests.allSatisfy({ $0 == true }) {
-    print("All tests passed")
-} else {
-    print("Some tests failed")
-}
\ No newline at end of file