Скачать с ютуб APMO 2013 - P2: A NT with a floor of square root в хорошем качестве

APMO 2013 - P2: A NT with a floor of square root

TIMESTAMPS 00:00 Who the problem is for 00:30 20 - 45/75 - 120 Take 5-10 00:50 First question we need to answer 01:50 The way we represent n 02:10 Looking at the new expression we have 03:15 Working with the fact that r less than 2k+1 03:50 Bounding on D 05:50 Working with casework D = 1 07:15 Working with casework D = 2 09:12 Working with casework D = 3 10:05 Concluding the problem 10:40 Reflecting on the problem 11:34 Thanks for problem solving :)