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The Fianchettoed Piece

Another one from codechef – after a long long time – now that I have started managing time to solve some problems.

http://www.codechef.com/problems/AXR1P3/

Transform the Expression

This is a simple one from codechef. Though the problem statement does not make it clear, the expression will be fully parenthesized.

http://www.codechef.com/problems/ONP/

Play on Words

This one is really good. I tried to use a simple algorithm to solve this one, but turned out the solution though simple, was not that simple as I had wanted it to be.

http://www.codechef.com/problems/WORDS1/

Name chopping

Another one from codechef. Understanding this one is a bit tricky, coding is too simple

http://www.codechef.com/problems/INSOMA4/

Byteland

Another simple one from codechef

http://www.codechef.com/problems/COINS/

Marbles

This one is good if you want to remember basic Permutations and Combinations from class XI and XII

http://www.codechef.com/problems/MARBLES/

The Next Palindrome

This one is really good

http://www.codechef.com/problems/PALIN/

Escalator

There is an escalator. Ram and Sham move down it. Ram takes 50 steps and Sham takes 75 steps while the escalator is moving down. Given that the time taken by Ram to take 1 step is equal to time taken by Sham to take 3 steps. Find the number of steps in the escalator while it is stationary?

Finding A

Keep spelling numbers in increasing order as one, two, three, so on. Which will be the smallest number whose spelling contains an "a"?