Write a function to check whether an integer is a palindrome without using arrays.
Engineer Software Interview Questions
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Write a Stack class: push(),pop() methods without using built-in pop() method. Following questions was to write a MinStack class which contains a method that finds the minimal value of a stack using only push() and pop().
2,3,5.7, what comes next?
i=0; i++ || ++i || i--; printf("%d\n",i);
reverse a string, then reverse a sentence
What kind of data structure will you use to implement a telephone directory?
Why doesn't C++ STL have hash_map?
SQL query to combine and display data from employee table and salary table for all employee whose name starts with 'S'?
Puzzles There are 100 doors in a row, all doors are initially closed. A person walks through all doors multiple times and toggle (if open then close, if close then open) them in following way: In first walk, the person toggles every door In second walk, the person toggles every second door, i.e., 2nd, 4th, 6th, 8th, … In third walk, the person toggles every third door, i.e. 3rd, 6th, 9th, … ……… ………. In 100th walk, the person toggles 100th door. Which doors are open in the end?
HR questions: Whats a hashtable and how fast is it? (big O)
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