American mathematician calculates shortest route to visit every bar in Korea… takes 178 days and 2 hours

A famous American mathematician calculated the shortest walking distance to visit all 81,998 bars in Korea. If you walk to all the bars without stopping, it will take 178 days, 1 hour, 56 minutes, and 17 seconds. William Cook, a mathematics professor at the University of Waterloo in Canada, calculated and proved the shortest path to visit all 81,998 bars in Korea on his homepage on the 8th of this month (local time).