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Onsite - 1. You have a computer with seven core cpu, you have a file and you have to read each line of the file, check if it has the word UPS in it, if so , then write it to a file, if there is no word as UPS in it, write that line to a different file. 2. An amount will be given as input. The amount will have some cents in change. So, for example $29.90. For the change, you have to start using the highest denomination and go to the lowest until the change value is completely met.
avatar

Senior Applications Developer

Interviewed at UPS

3.4★
Nov 29, 2017

Onsite - 1. You have a computer with seven core cpu, you have a file and you have to read each line of the file, check if it has the word UPS in it, if so , then write it to a file, if there is no word as UPS in it, write that line to a different file. 2. An amount will be given as input. The amount will have some cents in change. So, for example $29.90. For the change, you have to start using the highest denomination and go to the lowest until the change value is completely met.

What would the count for the list of it. public class Test { string Data; int Id; public Test(int id, string data) { Data = data; Id = id; } } static void Main(string[] args) { List<Test> list = new List<Test>(); list.Add(new Test(10, "test")); var d = new Test(10, "test"); if (!list.Contains(d)) list.Add(d); Console.WriteLine("Count of the list is : " + list.Count); Console.ReadLine(); } } What to do to make count 1?
avatar

Senior Applications Developer

Interviewed at RBC

3.9★
Mar 10, 2018

What would the count for the list of it. public class Test { string Data; int Id; public Test(int id, string data) { Data = data; Id = id; } } static void Main(string[] args) { List<Test> list = new List<Test>(); list.Add(new Test(10, "test")); var d = new Test(10, "test"); if (!list.Contains(d)) list.Add(d); Console.WriteLine("Count of the list is : " + list.Count); Console.ReadLine(); } } What to do to make count 1?

• Basic math What is a derivative? What is an integral? What is the relationship between integral and derivative? What is an eigenvalues? What is an eigenvector? Having this matrix: A= [[2 1];[-1 2]], what are the eigenvalues? what are the eigenvectors? How did you calculate these? What is a linear differential equation? Why? Explain? What is a singular matrix?? What is a symmetric matrix? What is an identity matrix? Having A=[ 2a 3g 4k] and B=[3a 2g -1k], what is the dot product? How did you do it? Factorize your answer. If A and B are matrices, what properties should these have to can be multiplied? • Programming concepts What is a virtual statement? What is a break statement? What is the difference between break/continue statements? What is a destructor do? What it is important? If you have a virtual statement, do you need to assign your destructor as a virtual? Why? What is a recursive function? Give an example. • One programming language (C++) What this line of code does? # define alpha beta What this line of code does? # define alpha 100 What these lines of code do? # if def alpha # end if what is the difference between malloc and calloc? • MATLAB How you save a variable in a mat file? How you save some specific variables in a mat file? How you open these data? How can you see the type of a variable? How can you do the inverse of a matrix? How you do the transpose of a matrix? What A.*B does? What A*B does? What A.’ does? What A.^-1 does? What A’ does? How you find help in MATLAB? How you plot a variable? What is a script? What is a function? Is a script the same that a function? If you type A=1 the answer is A=1 if you type 1 the answer is ans=1 How you do to don’t see the answer?? Using ; • Signals Processing What is z transform? What's the expression? What is the region of convergence? If you have a pole in the unit circle (exactly in 1), is the system stable? If you have a pole outside the unit circle, is the system stable? What is a causal system? What is a linear time invariant (LTI) system? Why? Explain? How it works? What is a LVR system? Why? Explain? How it works? If h[n]=[ 1 2 3 0 1], where the value of 0 is in n=3, what is the Z transform? If x[n]=n and y[n]=delta[n-3], what is x multiplied by y What's the difference between Continuous-time and Discrete-time systems? Can you convert a continuous system in a discrete system? How? Explain? Now, Can you convert a discrete system in a continuous system? How? Explain? What's the Power spectral Density? How to compute it?
avatar

Applications Support Engineer

Interviewed at MathWorks

4.3★
Apr 21, 2011

• Basic math What is a derivative? What is an integral? What is the relationship between integral and derivative? What is an eigenvalues? What is an eigenvector? Having this matrix: A= [[2 1];[-1 2]], what are the eigenvalues? what are the eigenvectors? How did you calculate these? What is a linear differential equation? Why? Explain? What is a singular matrix?? What is a symmetric matrix? What is an identity matrix? Having A=[ 2a 3g 4k] and B=[3a 2g -1k], what is the dot product? How did you do it? Factorize your answer. If A and B are matrices, what properties should these have to can be multiplied? • Programming concepts What is a virtual statement? What is a break statement? What is the difference between break/continue statements? What is a destructor do? What it is important? If you have a virtual statement, do you need to assign your destructor as a virtual? Why? What is a recursive function? Give an example. • One programming language (C++) What this line of code does? # define alpha beta What this line of code does? # define alpha 100 What these lines of code do? # if def alpha # end if what is the difference between malloc and calloc? • MATLAB How you save a variable in a mat file? How you save some specific variables in a mat file? How you open these data? How can you see the type of a variable? How can you do the inverse of a matrix? How you do the transpose of a matrix? What A.*B does? What A*B does? What A.’ does? What A.^-1 does? What A’ does? How you find help in MATLAB? How you plot a variable? What is a script? What is a function? Is a script the same that a function? If you type A=1 the answer is A=1 if you type 1 the answer is ans=1 How you do to don’t see the answer?? Using ; • Signals Processing What is z transform? What's the expression? What is the region of convergence? If you have a pole in the unit circle (exactly in 1), is the system stable? If you have a pole outside the unit circle, is the system stable? What is a causal system? What is a linear time invariant (LTI) system? Why? Explain? How it works? What is a LVR system? Why? Explain? How it works? If h[n]=[ 1 2 3 0 1], where the value of 0 is in n=3, what is the Z transform? If x[n]=n and y[n]=delta[n-3], what is x multiplied by y What's the difference between Continuous-time and Discrete-time systems? Can you convert a continuous system in a discrete system? How? Explain? Now, Can you convert a discrete system in a continuous system? How? Explain? What's the Power spectral Density? How to compute it?

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