The problems in Contest 1 have turned out to be a bit harder and more work than we hoped, so the marks allocation will be a bit more generous.

Instead of points / 500 * 6%, we’ll use (points + 100) / 600 * 6%, i.e.

points mark
0 1%
100 2%
200 3%
300 4%
400 5%
500 6%

We hope you have found the problems interesting, and for those of you still working on them, good luck!