From 2b6a9344943936fe44069c957735c3712388c7a9 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Mon, 23 Mar 2026 13:51:22 +0000
Subject: [PATCH 1/2] Initial plan


From 01d9df125791231c4444cf82ed37ca783491d62f Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Mon, 23 Mar 2026 13:52:23 +0000
Subject: [PATCH 2/2] Use grep -Fq for fixed-string matching in tests.sh

Co-authored-by: doctorlai-msrc <92519564+doctorlai-msrc@users.noreply.github.com>
Agent-Logs-Url: https://github.com/DoctorLai/cpp-coding-exercise/sessions/046cfbae-a5b3-412f-ade9-bee8689aa4db
---
 sudoku-solver/tests.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sudoku-solver/tests.sh b/sudoku-solver/tests.sh
index 6d7537c..fefa6e9 100755
--- a/sudoku-solver/tests.sh
+++ b/sudoku-solver/tests.sh
@@ -6,7 +6,7 @@ puzzle="53..7....6..195....98....6.8...6...34..8.3..17...2...6.6....28....419..5
 expected="534678912672195348198342567859761423426853791713924856961537284287419635345286179"
 
 output=$(./sudoku-solver "$puzzle")
-if ! echo "$output" | grep -q "$expected"; then
+if ! echo "$output" | grep -Fq "$expected"; then
     echo "Test failed: expected solution was not found"
     exit 1
 fi
@@ -18,7 +18,7 @@ if ./sudoku-solver "$invalid" >/dev/null 2>&1; then
 fi
 
 limited_output=$(./sudoku-solver "$puzzle" 1)
-if ! echo "$limited_output" | grep -q "Found 1 solution(s)."; then
+if ! echo "$limited_output" | grep -Fq "Found 1 solution(s)."; then
     echo "Test failed: max_solutions limit did not work"
     exit 1
 fi