Table:
0
A
B
C
1
student course id
transcript id
transcript contents
2
0
2
3
96
8
4
76
9
5
7
4
6
0
15
7
76
15
8
0
6
9
96
13
10
76
12
11
28982908
11
12
2
8
13
0
5
14
8
5
15
45105806
8
16
70882679
6

Questions and formulas:
Question: What is the maximum number of times that a course id shows up in different transcripts
Formula: TAKE(SORT(SUMMARIZE(B1,DCOUNTX(A1)), 2, -1), 1)
Formula2: TAKE(SORT(SUMMARIZE(B2:B16,DCOUNTX(A2:A16)), 2, -1), 1)
Level: hard