Archive for April, 2013

Some fantastic things as of late. (Not more fantastic than previously but still not bad.) A puzzle. You have an integer array of length N in memory, indexed from 1 to N. Each of the integers that it contains is between 1 and N-1. By the pigeonhole principle, two entries are the same. If the […]


For spring break, Sara and I took a voyage out of New Jersey and into Puerto Rico. Why Puerto Rico? Here are some photos to explain: The waterfall above is from El Yunque national park, and so is the next vista: This one, however, is sort of from the middle of nowhere, as we got […]