Community Profile

# Binbin Qi

### China University of Petroleum

3,838 2009 年以降の合計貢献数

Professional Interests: Machine Learning/ Math/ Geophysics

#### Binbin Qi's バッジ

すべて表示

Abelian Sandpile - 02
Generate a matrix like Abelian Sandpile where the four corner element is n. For example, n=4 [4 3 2 1 ...

Abelian Sandpile - 01
Generate a matrix like abelian sandpile where the center of the matrix is n. For example, n=3 out=[0 0 0 0 ...

Maya long Count
Given a Mayan date, calculate the number of days after the end of the last Great Cycle. <https://en.wikipedia.org/wiki/Maya_c...

Fault in our Stars - 02
Create a window pattern with h-horizontal bars and v-vertical bars. For example, for h=4,v=4 '**********' '* ...

Fault in our Stars - 01
Create a ladder pattern with n-steps and b-width. For example, For n=2, b=5 -- the ladder would look like - '* ...

Find an optimal placement of coolers on a grid
In a certain chemical plant, 6 new pieces of cooling equipment (coolers) are to be installed in a vacant space. This vacant spac...

Count the number of folds needed to pack a large sheet
In a certain paper factory, large sheets of paper are being made every day. Before sending the sheets for shipment, they have to...

Kissing Circles-01
Three circles are mutually tangent to each other and also to a line. find the radius of the smallest circle. The radius of th...

Number generator
In this problem, a number will be given. starting with the first digit, keep on adding all subsequent digits till the state (...

How lucky r u ?
Find the nth number in the following sequence <https://oeis.org/A264940>

Sieve of Eratosthenes
Find the nth lucky prime number. <https://planetmath.org/luckyprime> can u find a way for large n?

Combinatorics - 01
* Input=[x,n] * where x is an array of numbers(or strings) and n is a +ve number. for example, x=[1,2] and n=6. The out...

1日 前

chess position
given the position of a chess piece in algebric notation, convert it into 8 by 8 matrix format. For example, * 'Qd5' >> [3,4]...

1日 前

Castling-03
Given the position of different chess pieces on the chessboard, figure out whether castling is valid or not in the next move (wh...

1日 前

Castling-02
This is a follow up of problem <https://www.mathworks.com/matlabcentral/cody/groups/1/problems/45329-castling-01> Given...

1日 前

Castling-01
Given the position of only one player's chess pieces(some of them) on the chessboard, figure out whether castling is valid or no...

1日 前

Decimal Fraction to binary conversion
Given an fraction decimal number n, convert it to its equivalent binary number. If it is an infinite binary fraction, keep it...

1日 前

Kolakoski Sequence
This is a modified version of the kolakoski sequence. Refer to the problem <https://www.mathworks.com/matlabcentral/cody/p...

2日 前

Orthogonal Circles
Check whether two given circles are orthogonal or not. Two circles are orthogonal if they create a right angle at their inter...

2日 前

No of squares in a grid
given a m*n grid calculate the no of possible squares & rectangles on that grid. output: y=[no of rectangles , no of sqa...

2日 前

Yoonir - 03
Find the area of a seven-pointed star inscribed in a circle of radius r.

2日 前

Assess the scatter of wind turbines in a field
The renewable energy industry is on the rise in many countries--- and one of the key players is wind energy. It is believed ...

2日 前

Characterize fluid flow in a pipe as to laminar or turbulent
In fluid mechanics, characterizing the flow in a pipe is essential to predicting its behavior. The flow pattern can either be la...

2日 前

Compute the missing quantity among P, V, T for an ideal gas
Consider 100 mol of helium gas at a certain pressure (P), volume (V), and temperature (T). Assuming that the ideal gas law appli...

2日 前

Find an overlap in the cleaning schedule of two tank reactors
In a certain pharmaceutical production company, there are two tank reactors operating simultaneously and independent of each oth...

2日 前

Yoonir - 02
Find the area of a six-pointed star inscribed in a circle of radius r.

2日 前

Yoonir - 01
Find the area of a five-pointed star inscribed in a circle of radius r.

2日 前

Mid-term report
You just got your mid-term report, but it's full of ones and twos :(. So before you give it to your parents, you change it, in o...

2日 前

MinMax mapping
Given a matrix, map all the elements within a given interval. For example, a=[ 2 5 10] mapped in the interval [1,2] ...

2日 前

Convert a temperature reading from Celsius to an unknown scale
Two of the most famous temperature scales are the Celsius and the Fahrenheit scale. In reality, however, there are so many other...

2日 前