Sphere Online Judge (SPOJ) Community | CommonLounge

Sphere Online Judge (SPOJ)

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1.

discussion

[SPOJ AGGRCOW] Aggressive cows!by Shashwat Chandra

Can someone please give me some hints to solve this problem. Thanks in Advance!!

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2.

discussion

[RENT] Rent your airplane and make moneyby Himanshu Jaju

This problem is from ACM Southwestern European Regional Contest, Paris 2003

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3.

discussion

[ALTSEQ] Alternating Sequencesby Swetanjal Datta

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4.

discussion

[SUMSUM] Enjoy Sum with Operationsby Priyam Kakati

Need idea: Tried to solve it using bitmask + segment tree, but getting WA. Any idea about how to solve this problem efficiently?

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5.

discussion

[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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6.

discussion

[AIBOHP] Aibohphobiaby Swetanjal Datta

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