Return the ordering of courses you should take to finish all courses. If there are multiple valid answers, return any of them.
[
2,
[
[
1,
0
]
]
][
0,
1
][
4,
[
[
1,
0
],
[
2,
0
],
[
3,
1
],
[
3,
2
]
]
][
0,
1,
2,
3
][
2,
[
[
1,
0
],
[
0,
1
]
]
][]Sign in to Run Code and Submit