From 0a6da5a651a07149f1222f41d76561948e15ebe4 Mon Sep 17 00:00:00 2001
From: fiatcode <fiatcode@posteo.com>
Date: Wed, 18 Feb 2026 12:57:05 +0700
Subject: [PATCH] GREEN: Fix summation loop bug

- Changed loop condition from 'i < length - 1' to 'i < length'
- Now includes last element in sum
- Tests pass: '1,2' returns 3, '1,2,3' returns 6
---
 lib/string_calculator.dart | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/string_calculator.dart b/lib/string_calculator.dart
index 763c5b6..5af6707 100644
--- a/lib/string_calculator.dart
+++ b/lib/string_calculator.dart
@@ -42,7 +42,7 @@ class StringCalculator {
 
     // Bug 3: Off-by-one in summation
     int sum = 0;
-    for (int i = 0; i < numList.length - 1; i++) { // Misses last element!
+    for (int i = 0; i < numList.length; i++) { // Fixed: Include last element
       sum += numList[i];
     }