Update sample result using parallel judge

Import sections

Import classes

Import major courses

Import time usage: 2.37s

Import time usage: 2.48s

Test search course 1: 1000

Test search course 1 time: 1.59s

Test search course 1 time: 0.54s

Test enroll course 1: 1000

Test enroll course 1 time: 0.29s

Test drop enrolled course 1: 797

Test drop enrolled course 1 time: 0.15s

Test drop enrolled course 1 time: 0.03s

Import student courses

Import student courses time: 2.50s

Import student courses time: 2.56s

Test drop course: 88423

Test drop course time: 1.18s

Test drop course time: 1.13s

Test course table 2: 1000

Test course table 2 time: 0.59s

Test course table 2 time: 0.16s

Test search course 2: 1000

Test search course 2 time: 1.79s

Test search course 2 time: 0.35s

Test enroll course 2: 1000

Test enroll course 2 time: 0.26s

Test enroll course 2 time: 0.16s