From 8b82257ed65f851866cfa1288c4bf44c69b7ce2d Mon Sep 17 00:00:00 2001
From: studiosi <david@studiosi.es>
Date: Sat, 15 Aug 2026 17:24:26 +0300
Subject: [PATCH] Solved: 19 - References

---
 .../src/references.cpp                         | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/modules/05_pointers_and_references/src/references.cpp b/modules/05_pointers_and_references/src/references.cpp
index 10e369c..b4ef7b2 100644
--- a/modules/05_pointers_and_references/src/references.cpp
+++ b/modules/05_pointers_and_references/src/references.cpp
@@ -2,9 +2,19 @@
 
 namespace pointers {
 
-auto double_value(const int& value) -> int { (void)value; return 0; }
-void increment(int& value) { (void)value; }
-auto max_ref(const int& a, const int& b) -> const int& { (void)a; (void)b; return a; }
-auto sum_three(const int& a, const int& b, const int& c) -> int { (void)a; (void)b; (void)c; return 0; }
+auto double_value(const int& value) -> int {
+    return value * 2;
+}
+void increment(int& value) {
+    value++;
+}
+
+auto max_ref(const int& a, const int& b) -> const int&  {
+    return a > b ? a : b;
+}
+
+auto sum_three(const int& a, const int& b, const int& c) -> int {
+    return a + b + c;
+}
 
 }  // namespace pointers