Use Algorithm 7 to schedule the largest number of talks in a lecture hall from a proposed set of talks, if the starting and ending times of the talks are 9:00 a.m. and 9:45 a.m.; 9:30 a.m. and 10:00 a.m.; 9:50 a.m. and 10:15 a.m.; 10:00 a.m. and 10:30 a.m.; 10:10 a.m. and 10:25 a.m.; 10:30 a.m. and 10:55 a.m.; 10:15 a.m. and 10:45 a.m.; 10:30 a.m. and 11:00 a.m.; 10:45 a.m. and 11:30 a.m.; 10:55 a.m. and 11:25 a.m.; 11:00 a.m. and 11:15 a.m.