From e952c764958c1f7819496f015ded14452729288d Mon Sep 17 00:00:00 2001
From: Ragnar <rodiondenmark@gmail.com>
Date: Thu, 13 Mar 2025 17:25:38 +0100
Subject: [PATCH 1/2] Update fib.rs

---
 tests/integration-tests/fib.rs | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/tests/integration-tests/fib.rs b/tests/integration-tests/fib.rs
index 959afc2fd..2fed3b053 100644
--- a/tests/integration-tests/fib.rs
+++ b/tests/integration-tests/fib.rs
@@ -3,17 +3,26 @@
 #[nexus_rt::main]
 #[nexus_rt::public_input(n)]
 fn main(n: u32) -> u32 {
-    let mut a = 0;
-    let mut b = 1;
-
+    // Handle edge cases
     if n == 0 {
-        return a;
+        return 0;
+    }
+    if n == 1 {
+        return 1;
     }
 
-    for _ in 2..n {
-        let c = a + b;
+    let mut a = 0u32;
+    let mut b = 1u32;
+
+    for _ in 2..=n {
+        // Check for potential overflow before addition
+        if let Some(c) = a.checked_add(b) {
             a = b;
-        b = c;
+            b = c;
+        } else {
+            // In case of overflow, return max value
+            return u32::MAX;
+        }
     }
 
     b

From 257f1c53352ab150a36796a699ad6160903920e8 Mon Sep 17 00:00:00 2001
From: Ragnar <rodiondenmark@gmail.com>
Date: Wed, 2 Apr 2025 14:47:00 +0200
Subject: [PATCH 2/2] Update fib.rs

---
 tests/integration-tests/fib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/integration-tests/fib.rs b/tests/integration-tests/fib.rs
index 2fed3b053..199a4aed0 100644
--- a/tests/integration-tests/fib.rs
+++ b/tests/integration-tests/fib.rs
@@ -14,7 +14,7 @@ fn main(n: u32) -> u32 {
     let mut a = 0u32;
     let mut b = 1u32;
 
-    for _ in 2..=n {
+    for _ in 2..n {
         // Check for potential overflow before addition
         if let Some(c) = a.checked_add(b) {
             a = b;