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2
2

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3
2

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helo
hi

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gasp
matlab

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0, 2, 0, -2, 0, 2, 0, -2, ...
Generate the first n terms of a periodic sequence defined as f(x) = 0, 2, 0, -2, 0, 2, 0, -2, ..., for x = 1, 2, 3, 4, 5, 6...

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find a number (cheat)
find a number input^5 = input the out put should be the number. try cheating

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Change input vector
If a input vector is [3, 2, 6, 1, 6], the output vector is [3, 2, 6, 1, 6] + [1, 2, 3, 4, 5] = [4, 4, 9, 5, 11].

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cheating technique2
there are some ways to get hints just by looking at the test suits to cheat. try.

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make an eye matrix which element is 1:n
for a given input n, make an n by n matrix which contains elements 1:n for example input =5 output = [1 0 0 0 0;0 2 0 0 0; 0...

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determine if
determine if the elements of a matrix is a nan and return true

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cheating technique1
in these cody problems, there is a way to cheat. find out how people cheat.

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find the 'M'
for an input x, return 1 at the location of the letter 'M'

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Find the product of the positive elements above the main diagonal.
Example Input A=[1 2; -3 0] Output 2

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y=x
y=x

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Replicate and Tile an Array
Replicate and tile an array. Example A = [1 2 3; 4 5 6; 7 8 9] B = Epli_and_Tile(A,1,2) B = [ 1 2 3 1...

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Flipping a Matrix
Flipping matrix up and down. If a central row is exists, leave it, and flip remaining rows. Example Mat = magic(3) ...

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Where is the number that you want to find?
For a given matrix A, find where the input number x appears. Do this task by returning the vector which contains the row and th...

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Set the array elements whose value is 13 to 0
Input A either an array or a vector (which can be empty) Output B will be the same size as A . All elements of A equal to 13...

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Specific Element Count
Given a vector _v_ and a element _e_, return the number of occurrences of _e_ in _v_. Note: NaNs are equal and there may be n...

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Find perfect placement of non-rotating dominoes (easier)
Given a list of ordered pairs, find the order they should be placed in a line, such that the sum of the absolute values of the d...

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give nth decimal place of pi
max 15th place after the decimal point is ok for now

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Number of 1s in a binary string
Find the number of 1s in the given binary string. Example. If the input string is '1100101', the output is 4. If the input stri...

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Find the biggest empty box
You are given a matrix that contains only ones and zeros. Think of the ones as columns in an otherwise empty floor plan. You wan...

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Convert number from given base to other base
Convert number from given base to other base. Example 400 in base 5, find equivalent number in base 8, it is 144.

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given number is power of n or not?
Check weather The input is power of n or not? for example x=8,n=2 --> true x=6,n=2 --> false

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Get 1-4-3-4-4
Get the value of the indices in the title and assign it to an array

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Add two hex numbers
Add two hex numbers

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Flag largest magnitude swings as they occur
You have a phenomenon that produces strictly positive or negative results. delta = [1 -3 4 2 -1 6 -2 -7]; Marching thr...

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Make random permutation
Make random permutation that consist of random number from 1 to n.

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Solve the system of linear equations
4x - 2y +6z=8 2x + 8y +2z=4 6x + 10y +3z=0 Input is each coefficient of polynomial. For example, a=[4 ...

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