IMO 2019 is ongoing in Bath, United Kingdom. Yesterday (July 16, 2019) was said to be the first day. Some friends posted the three problems of day 1 online, and I took the liberty of working on the first two problems. I did not try the 3rd problem due to lack of interest as well as concern of time I might have to spend.
The following two sections are my solutions to the first two problems. This represents no significance. It is purely for fun remembering old high school days.Solutions to two problems of IMO 2019