From d099f61945b473c9dbb0d507ac948afd7f29d67a Mon Sep 17 00:00:00 2001
From: Hao Chen <haoel@hotmail.com>
Date: Tue, 26 Mar 2019 17:13:08 +0800
Subject: [PATCH] slightly reformat the code

---
 algorithms/cpp/numberOfIslands/NumberOfIslands.cpp | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/algorithms/cpp/numberOfIslands/NumberOfIslands.cpp b/algorithms/cpp/numberOfIslands/NumberOfIslands.cpp
index 2eea8a877..9c5d140ee 100644
--- a/algorithms/cpp/numberOfIslands/NumberOfIslands.cpp
+++ b/algorithms/cpp/numberOfIslands/NumberOfIslands.cpp
@@ -39,14 +39,10 @@ void mark(vector<vector<char> >& grid, int r, int c){
 
     grid[r][c] = 'M';
 
-    //left
-    mark(grid, r, c+1);
-    //right
-    mark(grid, r, c-1);
-    //up
-    mark(grid, r-1, c);
-    //down
-    mark(grid, r+1, c);
+    mark(grid, r, c+1); //left
+    mark(grid, r, c-1); //right
+    mark(grid, r-1, c); //up
+    mark(grid, r+1, c); //down
 }
 
 int numIslands(vector<vector<char> >& grid) {