If I have an array of size N that contains the numbers between 1-50, what's the most efficient way to find a duplicate?
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Java : There was hashmap code written with errors in it. Javascript : function is declared. It is called with window.functionName(), will it execute?
What’s the angle between Hour hand and Minute hand for 12:15 pm?
Assume you need to optimize a program which has about several Billion lines of code. You can get access to the source code and make modification. So what will to do to make this program run faster? The key thing is it has several Billion lines of code, so it is impossible to analyse the code deeply.
1. Write a code that will take in a string and count the number of characters in the string. 2. Write a code that takes in two different arrays, compares them and ouputs whatever is not common in the 2 arrays.
Write an implementation of a queue using only a stack class. The queue class should support the Enqueue() and Dequeue() methods.
Are you familiar with waterfall methodology?
X,Y are iid standard normal. what P(Y>3X)
What does NaN stand for?
Multithreading, concurrency in java
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