[ASSIGNMENT] A HARD PATTERN

Question

make pattern like this
/input/
7
/output/
5
4 6
3 7
2
1

/input/
22
/output/
5 13 21
4 6 12 14 20 22
3 7 11 15 19
2 8 10 16 18
1 9 17

In short, like a sine wave.
If possible, make it in c, cpp.

Answer 1

This is a nice challenge. Would you like to make it an assignment in the lesson factory?
https://www.sololearn.com/discuss/1082512/?ref=app

Answer 2

https://code.sololearn.com/cmq2GWrc988m/?ref=app