Update sampleResult

Import sections

Import classes

Import major courses

Import time usage: 5.28s

Import time usage: 5.32s

Test search course 1: 500

Test search course 1 time: 4.04s

Test search course 1 time: 2.98s

Test enroll course 1: 100

Test enroll course 1 time: 0.16s

Test enroll course 1 time: 0.14s

Test drop enrolled course 1: 78

Test drop enrolled course 1 time: 0.09s

Test drop enrolled course 1 time: 0.08s

Import student courses

Import student courses time: 0.94s

Import student courses time: 1.03s

Test drop course: 8822

Test drop course time: 7.90s

Test drop course time: 7.64s

Test course table 2: 100

Test course table 2 time: 0.21s

Test search course 2: 500

Test search course 2 time: 4.02s

Test search course 2 time: 3.05s

Test enroll course 2: 100

Test enroll course 2 time: 0.13s

Test enroll course 2 time: 0.14s