« Vrati se
Suppose that every integer has been given one of the colours red, blue, green or yellow. Let x and y be odd integers so that |x| \neq |y|. Show that there are two integers of the same colour whose difference has one of the following values: x,y,x+y or x-y.

Slični zadaci

#NaslovOznakeRj.KvalitetaTežina
2275IMO Shortlist 2008 problem C54
2131IMO Shortlist 2003 problem C60
2050IMO Shortlist 2000 problem C60
2023IMO Shortlist 1999 problem C71
2020IMO Shortlist 1999 problem C48
2019IMO Shortlist 1999 problem C31