* Write a function, preferably in C or C++, to reverse a string.
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Onsite Interview 2 a): check whether a number is the power of 2 b) Skyline silhouette puzzle . c) Discussion on uses of hash-tables and trees ? d) Few general questions on Work and academic background .
Look for a string in a very long string - a needle in a haystack. Write the program in pseudo-code.
Use singly linked list to implement the cache (LRU) algorithm. How would you do?
Find the length of the longest chain of consecutive integers in an unsorted set in linear time.
Given array of stick lengths, return number of turns it takes to have no sticks left. Each turn you remove sticks of smallest length and cut that length from the rest of the sticks.
Puzzle1 - Given 8 coins, and the fact that one of the coins is heavier than the other, how many times(min) do you need to use a beam balance to figure out which is the anomalous coin? After I answered this, he made it little tougher. Given 9 coins and one anomalous coin(maybe heavier or lighter), figure out which coin it is and whether heavier or lighter. What is the min no of comparisons? This is where i took a while to answer.
Jim has 42 cents and has 8 coins, and Jack has 56 cents and has 6 coins. Which has more nickels than the other?
Find the median of unsorted array in O(nlog n ) time. You need to know that particular mathematical algorithm, anything slower your answer is rejected.
(Phone screen questions) 1. For a given binary tree, print paths from root to all leaf nodes, one path per line. 2. Given a sequence of positive integers "seq" and an integer "total", return whether a contiguous sequence of "seq" sums up to "total". (Onsite interview questions are covered by NDA therefore can't post, but it can be said that the knowledge of data structures and handling edge cases are important for the coding interviews)
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