Hello Codeforces Community, TOKI Open Contest is back! :D

We would like to invite you to participate in this TOKI Open Contest March 2017. TOKI Open Contest is our (Indonesian's) monthly/bi-monthly online contest. Starting last month, we had decided to make this contest international! You may see the information of last month contest here. Every problem is written in both Bahasa Indonesia and English.

Starting this month, we divide the contest into two divisions: Division 1 and Division 2. It is pretty similar to the divisions in Codeforces. You are free to register in any division (it's extremely OK if you are a Div2 Codeforces user and register to our Division 1 contest)! The expected difficulties of the problems are much the same with the first four Codeforces' contest problems (A to D).

TOKI Open Contest March 2017 will be held on Saturday, 25 March 2017, 19.00 — 21.00 Western Indonesian Time (UTC+7). This contest is written by Agus Sentosa Hermawan (aguss787), Ammar Fathin Sabili (athin), Anthony Ng (anthonyhkf), and Muhammad Ayaz Dzulfikar (ayaze).

Several details related to the contest:

1. The contest will use ACM-ICPC scoring type.

2. For each division, there will be FOUR (4) problems with various difficulties but the weight for each problem is the same. The contest time is 2 hours.

3. The problems are sorted by their expected difficulty from easy to hard. Participants are recommended to read all the problems.

4. Any non-Accepted submission will get 8 minutes penalty (but the penalty will only be counted after the respective problem got Accepted).

5. The rank will be sorted according to the most number of solves (problems with Accepted verdict). If there are ties, it will be determined by least (sum of solving time + sum of penalty). The rank will be different for Division 1 and Division 2.

6. The allowed programming languages are C, C++11, Pascal, Python 3, and Java 8. However, please note that we do not ensure that every language can solve all the problems on the given time limit.

7. The contest will be held on https://competition.ia-toki.org/contests/170 for division 1 and https://competition.ia-toki.org/contests/171 for division 2. Registration is already opened at the same place. Registering the contest requires a TLX (http://competition.ia-toki.org) account. You may need to register for an account if you don't have one.

Good luck and have fun! See you at the leaderboard! :)

UPD 1 : The contest will be held in less than 24 hours, make sure you are already registered! :D

UPD 2 : The contest is over, thanks for participating the TOKI Open Contest March 2017! :D

This contest has 27 contestants in Division 1 and 67 contestants in Division 2 with at least one submission.

The following are the winner of the TOKI Open Contest March 2017:

Division 1:

1. jonathanirvings solved 3 problems with 142 minutes total penalty.

2. pwypeanut solved 3 problems with 192 minutes total penalty.

3. wiwitrifai solved 3 problems with 295 minutes total penalty.

Division 2:

1. [numberking] solved 3 problems with 278 minutes total penalty.

2. [yogahmad] solved 2 problems with 19 minutes total penalty.

3. [kevlee] solved 2 problems with 44 minutes total penalty.

Congratulation to winners! :D

The problems are available at https://training.ia-toki.org/problemsets/82/problems for upsolving. See you at the next TOKI Open Contest! :D