halleyhit

Last seen: 3달 전 | 2017 이후 활성

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Happy Chinese New Year of the Tiger 2022
Just for fun

8달 전 | 다운로드 수: 3 |

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Happy New Year and Best Wishes
Try this small code, feel free to modify~

9달 전 | 다운로드 수: 1 |

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Happy Mid Autumn Festival
This is small code for DIY gif to greet your friends in Mid Autumn Festival

약 1년 전 | 다운로드 수: 8 |

해결됨

Maximum value in a matrix
Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.

2년 이하 전

해결됨

Add two numbers
Given a and b, return the sum a+b in c.

2년 이하 전

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Locate Starting Point of Signal in Time Series
Locate starting point of signal in time series. e.g., pulse signal in real-time monitoring.

4년 이하 전 | 다운로드 수: 7 |

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big data plot for correlation analysis
plot a picture and U can see the correlation easily.

약 4년 전 | 다운로드 수: 2 |

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randomly pair divide or groupe
A common tool to make randomly pair divide or groupe.

약 4년 전 | 다운로드 수: 1 |

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When you feel indecisive
This is a random APP which can help you make decision, when U feel Indecisive. Just a game.

약 4년 전 | 다운로드 수: 1 |

해결됨

Solitaire Cipher
Implement the <http://en.wikipedia.org/wiki/Solitaire_(cipher) solitaire cipher>. Since this is from Wikipedia, I am capturin...

약 4년 전

해결됨

Implement simple rotation cypher
If given a letter from the set: [abc...xyz] and a shift, implement a shift cypher. Example: 'abc' with a shi...

약 4년 전

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Given a window, how many subsets of a vector sum positive
Given a vector: [1 0 -1 3 2 -3 1] and a window of 2, A sliding window would find: 1 + 0 = 1 0 - 1 = -1 ...

약 4년 전

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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...

약 4년 전

해결됨

Make a run-length companion vector
Given a vector x, return a vector r that indicates the run length of any value in x. Each element in r shows how many times the ...

약 4년 전

해결됨

Find a subset that divides the vector into equal halves
Given a vector x, return the indices to elements that will sum to exactly half of the sum of all elements. Example: Inpu...

약 4년 전

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How long is the longest prime diagonal?
Stanislaw Ulam once observed that if the counting numbers are <http://en.wikipedia.org/wiki/Ulam_spiral arranged in a spiral>, t...

약 4년 전

해결됨

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...

약 4년 전

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Triangle sequence
A sequence of triangles is constructed in the following way: 1) the first triangle is Pythagoras' 3-4-5 triangle 2) the s...

약 4년 전

해결됨

Is this triangle right-angled?
Given any three positive numbers a, b, c, return true if the triangle with sides a, b and c is right-angled. Otherwise, return f...

약 4년 전

해결됨

Find a Pythagorean triple
Given four different positive numbers, a, b, c and d, provided in increasing order: a < b < c < d, find if any three of them com...

약 4년 전

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Is this triangle right-angled?
Given three positive numbers a, b, c, where c is the largest number, return *true* if the triangle with sides a, b and c is righ...

약 4년 전

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Area of an Isoceles Triangle
An isosceles triangle has equal sides of length x and a base of length y. Find the area, A, of the triangle. <<http://upload...

약 4년 전

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Dimensions of a rectangle
The longer side of a rectangle is three times the length of the shorter side. If the length of the diagonal is x, find the width...

약 4년 전

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Side of a rhombus
If a rhombus has diagonals of length x and x+1, then what is the length of its side, y? <<http://upload.wikimedia.org/wikipe...

약 4년 전

해결됨

Side of an equilateral triangle
If an equilateral triangle has area A, then what is the length of each of its sides, x? <<http://upload.wikimedia.org/wikipe...

약 4년 전

해결됨

Area of an equilateral triangle
Calculate the area of an equilateral triangle of side x. <<http://upload.wikimedia.org/wikipedia/commons/e/e0/Equilateral-tr...

약 4년 전

해결됨

Length of the hypotenuse
Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<http://upload....

약 4년 전

해결됨

Length of a short side
Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...

약 4년 전

해결됨

Make a Palindrome Number
Some numbers like 323 are palindromes. Other numbers like 124 are not. But look what happens when we add that number to a revers...

약 4년 전

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Which doors are open?
There are n doors in an alley. Initially they are all shut. You have been tasked to go down the alley n times, and open/shut the...

약 4년 전

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