You can buy the goodies of your choice from https://goodies.codechef.com/, using laddus. There are various ways to earn laddus, as listed below:
Division 1:
In Monthly Cook-Off Contests
*Top 10 Global users will get $100 each.
*Top 25 Indian users will get Amazon Vouchers worth Rs. 1500 each.
In Monthly Lunchtime Contests
*Top 10 Global users will get $100 each.
*Top 25 Indian users will get Amazon Vouchers worth Rs. 1500 each.
- Top 10 school students will receive 300 laddus & a certificate.
- Top 10 Indian school students (except those in the point above) will receive 300 laddus & a certificate.
Miscellaneous Categories:
- Random Laddus to any 5 users: 200 laddus
- 100% attendance participation: 1000 laddus (This is independent of Division. You should have non-zero score in your division. That is, the non-scorable problems from the other division do not count)
- First to solve each problem individually: 100 laddus
- Country wise participation: Top 10, 20 and 30 will get 30, 40 and 50 laddus as per participation (participation is counted by combining both Divisions)
- Country wise performance: 200, 250, 300 laddus as per performance
- Consistently in top 10 ranks: 2500 laddus
Read more about the Miscellaneous Categories here.
Division 2:
In Monthly Cook-Off Contests
For Global participants
- Top 5 from ranklist will receive 50 laddus.
For Indian participants
- Top 5 from ranklist (except users who received laddus in the previous point) will receive 50 laddus.
In Monthly Lunchtime Contests
For Global participants
- Top 5 school students from ranklist will receive 50 laddus & a certificate.
For Indian participants
- Top 5 school students (except users who received laddus in the previous point) will receive 50 laddus & a certificate.
Miscellaneous Categories:
- Random Laddus to any 5 users: 50 laddus
- 100% attendance participation: 1000 laddus (This is independent of Division. You should have non-zero score in your division. That is, the non-scorable problems from the other division do not count)
- First to solve each problem individually: 100 laddus (For problems common to both Divisions, only one user will get laddus for that problem)
Read more about the Miscellaneous Categories here.
In addition to all these, we also give goodies to:
- Every contest hosted with us. You can read more about it here.
- Anyone who reports a genuine bug.
Note: We credit Laddus once the MOSS Plagiarism Process is complete.