From 4a4236fdb4b779f0be1a66347424991cd0a86229 Mon Sep 17 00:00:00 2001
From: Powerstot <77142630+Powerstot@users.noreply.github.com>
Date: Wed, 12 May 2021 10:50:11 +0800
Subject: [PATCH 1/2] =?UTF-8?q?=E6=B7=BB=E5=8A=A00015.=E4=B8=89=E6=95=B0?=
 =?UTF-8?q?=E4=B9=8B=E5=92=8C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

添加0015.三数之和
---
 problems/0015.三数之和.md | 37 +++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/problems/0015.三数之和.md b/problems/0015.三数之和.md
index 0bd683a8..1dabe885 100644
--- a/problems/0015.三数之和.md
+++ b/problems/0015.三数之和.md
@@ -178,7 +178,44 @@ public:
 
 
 Java：
+```Java
+class Solution {
+    public List<List<Integer>> threeSum(int[] nums) {
+        List<List<Integer>> result = new ArrayList<>();
+        Arrays.sort(nums);
 
+        for (int i = 0; i < nums.length; i++) {
+            if (nums[i] > 0) {
+                return result;
+            }
+
+            if (i > 0 && nums[i] == nums[i - 1]) {
+                continue;
+            }
+
+            int left = i + 1;
+            int right = nums.length - 1;
+            while (right > left) {
+                int sum = nums[i] + nums[left] + nums[right];
+                if (sum > 0) {
+                    right--;
+                } else if (sum < 0) {
+                    left++;
+                } else {
+                    result.add(Arrays.asList(nums[i], nums[left], nums[right]));
+
+                    while (right > left && nums[right] == nums[right - 1]) right--;
+                    while (right > left && nums[left] == nums[left + 1]) left++;
+                    
+                    right--;
+                    left++;
+                }
+            }
+        }
+        return result;
+    }
+}
+```
 
 Python：
 

From 4ceab173637ff45eb2213160c960968cddb8fb73 Mon Sep 17 00:00:00 2001
From: Powerstot <77142630+Powerstot@users.noreply.github.com>
Date: Wed, 12 May 2021 13:23:27 +0800
Subject: [PATCH 2/2] =?UTF-8?q?=E6=B7=BB=E5=8A=A00015.=E4=B8=89=E6=95=B0?=
 =?UTF-8?q?=E4=B9=8B=E5=92=8C=20Java=E7=89=88=E6=9C=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

添加0015.三数之和 Java版本
---
 problems/0015.三数之和.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/problems/0015.三数之和.md b/problems/0015.三数之和.md
index 1dabe885..55e22887 100644
--- a/problems/0015.三数之和.md
+++ b/problems/0015.三数之和.md
@@ -207,7 +207,7 @@ class Solution {
                     while (right > left && nums[right] == nums[right - 1]) right--;
                     while (right > left && nums[left] == nums[left + 1]) left++;
                     
-                    right--;
+                    right--; 
                     left++;
                 }
             }