Selected Problems Of The Vietnamese Mathematica... Official

. The beauty of the problem lies in proving that it doesn't "skip" over an integer due to the discrete steps. Why this matters Vietnamese problems frequently focus on:

denotes the greatest integer function).

xn+1=xn+1⌊xn⌋x sub n plus 1 end-sub equals x sub n plus the fraction with numerator 1 and denominator the floor of x sub n end-floor end-fraction Selected Problems of the Vietnamese Mathematica...

Here is a brief overview and a sample problem that captures the spirit of the competition. The Spirit of the VMO Selected Problems of the Vietnamese Mathematica...