« Vrati se
In a certain language words are formed using an alphabet of three letters. Some words of two or more letters are not allowed, and any two such distinct words are of different lengths. Prove that one can form a word of arbitrary length that does not contain any non-allowed word.

Slični zadaci

#NaslovOznakeRj.KvalitetaTežina
1463IMO Shortlist 1974 problem 40
1461IMO Shortlist 1974 problem 20
1259IMO Shortlist 1967 problem 31
1240IMO Shortlist 1966 problem 570
1237IMO Shortlist 1966 problem 540
1235IMO Shortlist 1966 problem 520