diff --git a/README.md b/README.md
index 386881ff65554..f63d34b5a2b17 100644
--- a/README.md
+++ b/README.md
@@ -232,6 +232,17 @@
+## 版权
+
+本项目著作权归 [GitHub 开源社区 Doocs](https://github.com/doocs) 所有,商业转载请联系 @yanglbme 获得授权,非商业转载请注明出处。
+
+## 联系我们
+
+欢迎各位小伙伴们添加 @yanglbme 的个人微信(微信号:YLB0109),备注 「**leetcode**」。后续我们会创建算法、技术相关的交流群,大家一起交流学习,分享经验,共同进步。
+
+|
|
+| ------------------------------------------------------------------------------------------------------------------------------ |
+
## 许可证
知识共享 版权归属-相同方式共享 4.0 国际 公共许可证
diff --git a/README_EN.md b/README_EN.md
index fabe527985ac5..52e116dc70a55 100644
--- a/README_EN.md
+++ b/README_EN.md
@@ -219,6 +219,17 @@ Thank you to all our backers and sponsors!
> "_You help the developer community practice for interviews, and there is nothing better we could ask for._" -- [Alan Yessenbayev](https://opencollective.com/alan-yessenbayev)
+## Copyright
+
+The copyright of this project belongs to [Doocs](https://github.com/doocs) community. For commercial reprints, please contact [@yanglbme](mailto:contact@yanglibin.info) for authorization. For non-commercial reprints, please indicate the source.
+
+## Contact Us
+
+We welcome everyone to add @yanglbme's personal WeChat (WeChat ID: YLB0109), with the note "leetcode". In the future, we will create algorithm and technology related discussion groups, where we can learn and share experiences together, and make progress together.
+
+|
|
+| --------------------------------------------------------------------------------------------------------------------------------- |
+
## License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
diff --git a/basic/README.md b/basic/README.md
index 9625056fe590a..97f1daf92b60d 100644
--- a/basic/README.md
+++ b/basic/README.md
@@ -14,3 +14,18 @@
## 查找算法
- [二分查找](/basic/searching/BinarySearch/README.md)
+
+## 版权
+
+本项目著作权归 [GitHub 开源社区 Doocs](https://github.com/doocs) 所有,商业转载请联系 @yanglbme 获得授权,非商业转载请注明出处。
+
+## 联系我们
+
+欢迎各位小伙伴们添加 @yanglbme 的个人微信(微信号:YLB0109),备注 「**leetcode**」。后续我们会创建算法、技术相关的交流群,大家一起交流学习,分享经验,共同进步。
+
+|
|
+| ------------------------------------------------------------------------------------------------------------------------------ |
+
+## 许可证
+
+知识共享 版权归属-相同方式共享 4.0 国际 公共许可证
diff --git a/basic/README_EN.md b/basic/README_EN.md
index 9bd08963bf0f8..5b8200bbd55f9 100644
--- a/basic/README_EN.md
+++ b/basic/README_EN.md
@@ -14,3 +14,18 @@
## Searching
- [Binary Search](/basic/searching/BinarySearch/README.md)
+
+## Copyright
+
+The copyright of this project belongs to [Doocs](https://github.com/doocs) community. For commercial reprints, please contact [@yanglbme](mailto:contact@yanglibin.info) for authorization. For non-commercial reprints, please indicate the source.
+
+## Contact Us
+
+We welcome everyone to add @yanglbme's personal WeChat (WeChat ID: YLB0109), with the note "leetcode". In the future, we will create algorithm and technology related discussion groups, where we can learn and share experiences together, and make progress together.
+
+|
|
+| --------------------------------------------------------------------------------------------------------------------------------- |
+
+## License
+
+This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
diff --git a/lcci/README.md b/lcci/README.md
index 18dffb05a6bd9..07509bd90ec06 100644
--- a/lcci/README.md
+++ b/lcci/README.md
@@ -124,4 +124,15 @@
## 版权
-著作权归 [GitHub 开源社区 Doocs](https://github.com/doocs) 所有,商业转载请联系 [@yanglbme](mailto:contact@yanglibin.info) 获得授权,非商业转载请注明出处。
+本项目著作权归 [GitHub 开源社区 Doocs](https://github.com/doocs) 所有,商业转载请联系 @yanglbme 获得授权,非商业转载请注明出处。
+
+## 联系我们
+
+欢迎各位小伙伴们添加 @yanglbme 的个人微信(微信号:YLB0109),备注 「**leetcode**」。后续我们会创建算法、技术相关的交流群,大家一起交流学习,分享经验,共同进步。
+
+|
|
+| ------------------------------------------------------------------------------------------------------------------------------ |
+
+## 许可证
+
+知识共享 版权归属-相同方式共享 4.0 国际 公共许可证
diff --git a/lcci/README_EN.md b/lcci/README_EN.md
index 8abc13783189b..ec808527ac197 100644
--- a/lcci/README_EN.md
+++ b/lcci/README_EN.md
@@ -122,4 +122,15 @@ Press Control + F(or Command + F on
## Copyright
-[@Doocs](https://github.com/doocs)
+The copyright of this project belongs to [Doocs](https://github.com/doocs) community. For commercial reprints, please contact [@yanglbme](mailto:contact@yanglibin.info) for authorization. For non-commercial reprints, please indicate the source.
+
+## Contact Us
+
+We welcome everyone to add @yanglbme's personal WeChat (WeChat ID: YLB0109), with the note "leetcode". In the future, we will create algorithm and technology related discussion groups, where we can learn and share experiences together, and make progress together.
+
+|
|
+| --------------------------------------------------------------------------------------------------------------------------------- |
+
+## License
+
+This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
diff --git a/lcof/README.md b/lcof/README.md
index 458b2a4fe811a..a2c90fb53ab87 100644
--- a/lcof/README.md
+++ b/lcof/README.md
@@ -92,4 +92,15 @@
## 版权
-著作权归 [GitHub 开源社区 Doocs](https://github.com/doocs) 所有,商业转载请联系 [@yanglbme](mailto:contact@yanglibin.info) 获得授权,非商业转载请注明出处。
+本项目著作权归 [GitHub 开源社区 Doocs](https://github.com/doocs) 所有,商业转载请联系 @yanglbme 获得授权,非商业转载请注明出处。
+
+## 联系我们
+
+欢迎各位小伙伴们添加 @yanglbme 的个人微信(微信号:YLB0109),备注 「**leetcode**」。后续我们会创建算法、技术相关的交流群,大家一起交流学习,分享经验,共同进步。
+
+|
|
+| ------------------------------------------------------------------------------------------------------------------------------ |
+
+## 许可证
+
+知识共享 版权归属-相同方式共享 4.0 国际 公共许可证
diff --git a/lcof/README_EN.md b/lcof/README_EN.md
index 521f6dc6cdd64..73e8017141a05 100644
--- a/lcof/README_EN.md
+++ b/lcof/README_EN.md
@@ -16,4 +16,15 @@ Press Control + F(or Command + F on
## Copyright
-[@Doocs](https://github.com/doocs)
+The copyright of this project belongs to [Doocs](https://github.com/doocs) community. For commercial reprints, please contact [@yanglbme](mailto:contact@yanglibin.info) for authorization. For non-commercial reprints, please indicate the source.
+
+## Contact Us
+
+We welcome everyone to add @yanglbme's personal WeChat (WeChat ID: YLB0109), with the note "leetcode". In the future, we will create algorithm and technology related discussion groups, where we can learn and share experiences together, and make progress together.
+
+|
|
+| --------------------------------------------------------------------------------------------------------------------------------- |
+
+## License
+
+This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
diff --git a/lcof2/README.md b/lcof2/README.md
index 843fd25c800c2..d71999e2c3e1e 100644
--- a/lcof2/README.md
+++ b/lcof2/README.md
@@ -134,4 +134,15 @@
## 版权
-著作权归 [GitHub 开源社区 Doocs](https://github.com/doocs) 所有,商业转载请联系 [@yanglbme](mailto:contact@yanglibin.info) 获得授权,非商业转载请注明出处。
+本项目著作权归 [GitHub 开源社区 Doocs](https://github.com/doocs) 所有,商业转载请联系 @yanglbme 获得授权,非商业转载请注明出处。
+
+## 联系我们
+
+欢迎各位小伙伴们添加 @yanglbme 的个人微信(微信号:YLB0109),备注 「**leetcode**」。后续我们会创建算法、技术相关的交流群,大家一起交流学习,分享经验,共同进步。
+
+|
|
+| ------------------------------------------------------------------------------------------------------------------------------ |
+
+## 许可证
+
+知识共享 版权归属-相同方式共享 4.0 国际 公共许可证
diff --git a/lcp/README.md b/lcp/README.md
index c2e68a45a5fb5..daf350e71650b 100644
--- a/lcp/README.md
+++ b/lcp/README.md
@@ -94,4 +94,15 @@
## 版权
-著作权归 [GitHub 开源社区 Doocs](https://github.com/doocs) 所有,商业转载请联系 [@yanglbme](mailto:contact@yanglibin.info) 获得授权,非商业转载请注明出处。
+本项目著作权归 [GitHub 开源社区 Doocs](https://github.com/doocs) 所有,商业转载请联系 @yanglbme 获得授权,非商业转载请注明出处。
+
+## 联系我们
+
+欢迎各位小伙伴们添加 @yanglbme 的个人微信(微信号:YLB0109),备注 「**leetcode**」。后续我们会创建算法、技术相关的交流群,大家一起交流学习,分享经验,共同进步。
+
+|
|
+| ------------------------------------------------------------------------------------------------------------------------------ |
+
+## 许可证
+
+知识共享 版权归属-相同方式共享 4.0 国际 公共许可证
diff --git a/lcs/README.md b/lcs/README.md
index 54cbf9fefa6f8..8f6d517d6a9e8 100644
--- a/lcs/README.md
+++ b/lcs/README.md
@@ -14,4 +14,15 @@
## 版权
-著作权归 [GitHub 开源社区 Doocs](https://github.com/doocs) 所有,商业转载请联系 [@yanglbme](mailto:contact@yanglibin.info) 获得授权,非商业转载请注明出处。
+本项目著作权归 [GitHub 开源社区 Doocs](https://github.com/doocs) 所有,商业转载请联系 @yanglbme 获得授权,非商业转载请注明出处。
+
+## 联系我们
+
+欢迎各位小伙伴们添加 @yanglbme 的个人微信(微信号:YLB0109),备注 「**leetcode**」。后续我们会创建算法、技术相关的交流群,大家一起交流学习,分享经验,共同进步。
+
+|
|
+| ------------------------------------------------------------------------------------------------------------------------------ |
+
+## 许可证
+
+知识共享 版权归属-相同方式共享 4.0 国际 公共许可证
diff --git a/solution/README.md b/solution/README.md
index 9027686fd1c66..b2fd88bdf9cdb 100644
--- a/solution/README.md
+++ b/solution/README.md
@@ -2982,4 +2982,15 @@
## 版权
-著作权归 [GitHub 开源社区 Doocs](https://github.com/doocs) 所有,商业转载请联系 [@yanglbme](mailto:contact@yanglibin.info) 获得授权,非商业转载请注明出处。
\ No newline at end of file
+本项目著作权归 [GitHub 开源社区 Doocs](https://github.com/doocs) 所有,商业转载请联系 @yanglbme 获得授权,非商业转载请注明出处。
+
+## 联系我们
+
+欢迎各位小伙伴们添加 @yanglbme 的个人微信(微信号:YLB0109),备注 「**leetcode**」。后续我们会创建算法、技术相关的交流群,大家一起交流学习,分享经验,共同进步。
+
+|
|
+| ------------------------------------------------------------------------------------------------------------------------------ |
+
+## 许可证
+
+知识共享 版权归属-相同方式共享 4.0 国际 公共许可证
\ No newline at end of file
diff --git a/solution/README_EN.md b/solution/README_EN.md
index a02b5ce25f38a..840750846244b 100644
--- a/solution/README_EN.md
+++ b/solution/README_EN.md
@@ -2980,4 +2980,15 @@ Press Control + F(or Command + F on
## Copyright
-[@Doocs](https://github.com/doocs)
\ No newline at end of file
+The copyright of this project belongs to [Doocs](https://github.com/doocs) community. For commercial reprints, please contact [@yanglbme](mailto:contact@yanglibin.info) for authorization. For non-commercial reprints, please indicate the source.
+
+## Contact Us
+
+We welcome everyone to add @yanglbme's personal WeChat (WeChat ID: YLB0109), with the note "leetcode". In the future, we will create algorithm and technology related discussion groups, where we can learn and share experiences together, and make progress together.
+
+|
|
+| --------------------------------------------------------------------------------------------------------------------------------- |
+
+## License
+
+This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
diff --git a/solution/template.md b/solution/template.md
index 0d0b2ce7e9f36..b139c1832a136 100644
--- a/solution/template.md
+++ b/solution/template.md
@@ -14,7 +14,14 @@
## 版权
-著作权归 [GitHub 开源社区 Doocs](https://github.com/doocs) 所有,商业转载请联系 [@yanglbme](mailto:contact@yanglibin.info) 获得授权,非商业转载请注明出处。
+本项目著作权归 [GitHub 开源社区 Doocs](https://github.com/doocs) 所有,商业转载请联系 @yanglbme 获得授权,非商业转载请注明出处。
+
+## 联系我们
+
+欢迎各位小伙伴们添加 @yanglbme 的个人微信(微信号:YLB0109),备注 「**leetcode**」。后续我们会创建算法、技术相关的交流群,大家一起交流学习,分享经验,共同进步。
+
+|
|
+| ------------------------------------------------------------------------------------------------------------------------------ |
@@ -34,7 +41,18 @@ Press Control + F(or Command + F on
## Copyright
-[@Doocs](https://github.com/doocs)
+The copyright of this project belongs to [Doocs](https://github.com/doocs) community. For commercial reprints, please contact [@yanglbme](mailto:contact@yanglibin.info) for authorization. For non-commercial reprints, please indicate the source.
+
+## Contact Us
+
+We welcome everyone to add @yanglbme's personal WeChat (WeChat ID: YLB0109), with the note "leetcode". In the future, we will create algorithm and technology related discussion groups, where we can learn and share experiences together, and make progress together.
+
+|
|
+| --------------------------------------------------------------------------------------------------------------------------------- |
+
+## License
+
+This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
@@ -56,7 +74,14 @@ Press Control + F(or Command + F on
## 版权
-著作权归 [GitHub 开源社区 Doocs](https://github.com/doocs) 所有,商业转载请联系 [@yanglbme](mailto:contact@yanglibin.info) 获得授权,非商业转载请注明出处。
+本项目著作权归 [GitHub 开源社区 Doocs](https://github.com/doocs) 所有,商业转载请联系 @yanglbme 获得授权,非商业转载请注明出处。
+
+## 联系我们
+
+欢迎各位小伙伴们添加 @yanglbme 的个人微信(微信号:YLB0109),备注 「**leetcode**」。后续我们会创建算法、技术相关的交流群,大家一起交流学习,分享经验,共同进步。
+
+|
|
+| ------------------------------------------------------------------------------------------------------------------------------ |
@@ -76,7 +101,18 @@ Press Control + F(or Command + F on
## Copyright
-[@Doocs](https://github.com/doocs)
+The copyright of this project belongs to [Doocs](https://github.com/doocs) community. For commercial reprints, please contact [@yanglbme](mailto:contact@yanglibin.info) for authorization. For non-commercial reprints, please indicate the source.
+
+## Contact Us
+
+We welcome everyone to add @yanglbme's personal WeChat (WeChat ID: YLB0109), with the note "leetcode". In the future, we will create algorithm and technology related discussion groups, where we can learn and share experiences together, and make progress together.
+
+|
|
+| --------------------------------------------------------------------------------------------------------------------------------- |
+
+## License
+
+This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.