Bill & Melinda Gates Foundation set conditions so that these contributions do not simply increase the foundation's endowment, but effectively work as a matching contribution, doubling the foundation's annual giving. Bloomberg News noted, "Buffett's gift came with three conditions for the Bill & Melinda Gates Foundation: Bill or Melinda Gates must be alive and active in its administration; it must continue to qualify as a charity; and each year it must give away an amount equal to the previous year's Berkshire gift, plus an additional amount equal to 5 percent of net assets. Buffett gave the foundation two years to abide by the third requirement."
Bill Gates 2014. In his second year, Gates devised an algorithm for pancake sorting as a solution to one of a series of unsolved problems presented in a combinatorics class by Harry Lewis, one of his professors. Gates' solution held the record as the fastest version for over thirty years; its successor is faster by only one percent. His solution was later formalized in a published paper in collaboration with Harvard computer scientist Christos Papadimitriou. Gates did not have a definite study plan while he was a student at Harvard, and he spent a lot of time using the school's computers. Gates