Score : 600 points
Given are two integer sequences of N elements each: A_1,...,A_N and B_1,...,B_N. Determine if it is possible to do the following operation at most N-2 times (possibly zero) so that, for every integer i from 1 to N, A_i \leq B_i holds:
Input is given from Standard Input in the following format:
N A_1 A_2 ... A_N B_1 B_2 ... B_N
If the objective is achievable, print Yes; if it is not, print No.
3 1 3 2 1 2 3
Yes
We should swap the values of A_2 and A_3.
3 1 2 3 2 2 2
No
6 3 1 2 6 3 4 2 2 8 3 4 3
Yes