Can someone please give me some hints to solve this problem. Thanks in Advance!!
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[RENT] Rent your airplane and make moneyby Himanshu Jaju
This problem is from ACM Southwestern European Regional Contest, Paris 2003
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[ALTSEQ] Alternating Sequencesby Swetanjal Datta
[BAT2] Batman2by Annu Purohit
Need idea: I thought of finding all possible increasing and decreasing subsequences which is too slow. Can this be done efficiently? Also according to me there can be at max 1 element in common in both the subsequences. I am not getting how to use this information.
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[TEMPLEQ] Temple Queuesby Himanshu Jaju
This is a beautiful problem that I solved today. The idea is very interesting and the implementation can be a little difficult.