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The code submitting service has been moved to zoj.pintia.cn.

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ZOJ News

2021.05.13
New! Announcement of 2020-2021 Huawei-ZJU ICPC Team Elite Scholarship Recipients

Click here to see details (in Chinese).

2020.06.09
Announcement of 2019-2020 Huawei-ZJU ICPC Team Elite Scholarship Recipients

Click here to see details (in Chinese).

2019.06.02
The 2019 ICPC China Shaanxi Provincial Programming Contest on June 2.

Click here to practice these problems in the problemset.
Contest materials: final standings, problems (pdf)

2019.05.27
Announcement of 2018-2019 Huawei-ZJU ICPC Team Elite Scholarship Recipients

Click here to see details (in Chinese).

2019.05.12
The 10th Shandong Provincial Collegiate Programming Contest on May 12.

Click here to practice these problems in the problemset.
Contest materials: final standings, problems (pdf), website

2019.03.14
The 16th Zhejiang Provincial Collegiate Programming Contest Sponsored by TuSimple (Mirror) on April 27.

Click here to practice these problems in the problemset.
Contest materials: final standings, problems (pdf), website

Please note that this is an online mirror contest! Our onsite contest starts at 12:00 on April 27.
Please come to our contest area on time if you want to participate in the onsite contest.

The sponsor of the contest is TuSimple. We hereby give our sincere thanks for their support.

2019.03.14
The 19th Zhejiang University Programming Contest Sponsored by TuSimple (Mirror) on April 14.

Click here to practice these problems in the problemset.
Contest materials: final standings, problems (pdf), announcement

Our special judge program of problem J will mistake 4033 and 4681 as primes. We are really really sorry for this incident.
The judge program has been fixed now, and we have rejudged all solutions after the mirror contest. Sorry again for the inconvenience caused!

Please note that this is an online mirror contest! Our onsite contest starts at 13:00 on April 14.
Please come to our contest area on time if you want to participate in the onsite contest.

The 19th Zhejiang University Programming Contest is coming! Everybody is welcome to participate in our contest.
If you are a student of Zhejiang Universty, please click this link (in Chinese) to sign up for the onsite contest.
If you are not a student of Zhejiang University, you are still welcome to come to our onsite contest. Please check this link (in Chinese) for more information.
You might also be interested in our online contest scheduled at 14:00 on April 14th. Check the link on the news title for more information.
The sponsor of the contest is TuSimple. We hereby give our sincere thanks for their support.

2019.01.02
ZOJ Monthly, January 2019 on January 19.

Click here to practice these problems in the problemset.
Contest materials: editorials (in Chinese)

Good luck and have fun! Happy new year!

2018.12.18
Warning: Fake ICPC for Elementary School in Mainland China

This message is from the ICPC Asia Super-Regional Director Professor C. Jinshong Hwang.

In consideration of the recent occurrence of some counterfeit contests using ICPC brand in China, it is officially stated that all contests which not registered on the ICPC official website (https://icpc.baylor.edu/) are not officially authorized by ICPC. Please be cautious to participate.

Click this link for a detailed message (in both Chinese and English).

2018.12.06
Weak Passwords are not Allowed on ZOJ Now.

We are required by the Network Security Inspection Group of Ministry of Education not to allow users to use weak passwords.

For the users using "123456" or "password" as their passwords, we have (forcibly) changed their passwords to their e-mail used for registering ZOJ. Sorry for the inconvenience caused.

2018.11.04
The 2018 ACM-ICPC Asia Qingdao Regional Contest on November 4.

Click here to practice these problems in the problemset.
Contest materials: problems (pdf), final standings, website

An online mirror contest is also scheduled at 12:00 on November 10. Feel free to participate in the contest if you are interested.

2018.09.09
The 2018 ACM-ICPC Asia Qingdao Regional Contest, Online on September 16.

Click here to practice these problems in the problemset.
Contest materials: problems (pdf), final standings

As the network condition in our data center is poor, we are going to host the contest on pintia.cn.
Click here to view the instructions on how to use pintia.cn.
All the problems will be available for practice on ZOJ after the contest.
Good luck and have fun!