Jiahang Li
Information and computing science student in China. I started playing Cody on 27th February 2018. MATLAB is my favorite tool in learning.
Statistics
Obtain 50 solvers for a problem you have created
Awarded to Jiahang Li on 12 Nov 2020
Solve Project Euler problems using Matlab
Awarded to Jiahang Li on 11 Feb 2020
Download any 10 unique submissions
Awarded to Jiahang Li on 01 Jul 2021
Publish your first review
Awarded to Jiahang Li on 09 Oct 2019
Solve all the problems in ASEE Challenge
Awarded to Jiahang Li on 13 Jun 2018
Solve 500 problems
Awarded to Jiahang Li on 07 Mar 2018
Solve all the problems in Cody Problems in Japanese problem group
Awarded to Jiahang Li on 28 Feb 2018
Solve a problem with a best solution
Awarded to Jiahang Li on 27 Feb 2018
Solve all the problems in CUP Challenge
Awarded to Jiahang Li on 12 Feb 2018
Be the first to solve a problem
Awarded to Jiahang Li on 03 Feb 2018
Create a problem
Awarded to Jiahang Li on 03 Feb 2018
Comment on a problem or solution
Awarded to Jiahang Li on 01 Feb 2018
Content Feed
解決済み
vectors counting by 5
Create a vector with numbers from x_min to x_max in increments of 5.
1年以上 前
解決済み
ZigZag - 01
Given a matrix, return the elements that are on the Z form of the matrix. For example - a=[1,2,3; 4,5,6; 7,8,9] ...
1年以上 前
解決済み
Determina el número de cifras de un número
Crea una función que te devuelva el número de cifras de un número. Algunos ejemplos para ayudarte serían: El número 125 tie...
1年以上 前
解決済み
Area-03
There are two circles of equal size are inscribed inside a square. They are tangent to each other. <https://serving.photos.ph...
1年以上 前
解決済み
Basic matrix operations using standard MATLAB commands
Create the matrix: 1.0e+15 * 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000...
1年以上 前
解決済み
Create tangent function out of sine function only
Please don't use cosine and tangent functions
1年以上 前
解決済み
Get all prime factors
List the prime factors for the input number, in decreasing order. List each factor. If the prime factor occurs twice, list it as...
1年以上 前
解決済み
Count me in
Count the number of occurrences of the second input in the first input Ex. x1 = 12344455511; x2 =2; output = 1 ...
1年以上 前
解決済み
Determinant of a 3x3 Matrix
Return the determinant of a 3x3 matrix. The built-in Matlab function det is not allowed.
1年以上 前
解決済み
New Matrix with vector addition on diagonal
consider 2 vectors x=[1 2 3] y=[4 5 6] then generate a new Matrix, where Addition of x & y will be diagonal Elements...
1年以上 前
解決済み
Creating a code via test suite :)
Given the test suites, create a code that would fit them :) *Clue: Pascal's Triangle
1年以上 前
解決済み
Upper Matrix Mock
Given a vector v=[1 3 6 9 11], turn it into a matrix 'ramp' like so: m=[1 3 6 9 11; 0 1 3 6 9; 0 0 1 3 6; 0 0 0 1...
1年以上 前
解決済み
Integrate Me
Given polynomial, output the integral (with k = 1 for simplicity purposes) Example: input = [2 1] % 2x+1 output = [1 1 1]...
1年以上 前
解決済み
ASCII sum of phrases
Find the sum of the numeric equivalents of all characters entered in a phrase. For example: for the phrase 'My name is test', th...
1年以上 前
解決済み
Raise each element to the power of its index in a matrix
In a matrix, A = [1,2;3,4] raise the power of each element like: 1^1+2^3+3^2+4^4 and add it all to produce the result 274
1年以上 前
解決済み
Capitalized string operations
Convert the input sentence to upper case and replace all vowels with an underscore ('_')
1年以上 前
解決済み
generate capital english alphabets
Based on the numeric input 'n', generate the capital english alphabet starting from A till the english alphabet at the 'n'th pos...
1年以上 前
解決済み
Remove white spaces at the end of the input string
Remove all trailing white spaces at the end of the input strings
1年以上 前
解決済み
Repetition of matrices
*A is a bold matrix: [1 2 3; 4 5 6;7 8 9]* Given an integer 'n' , a matrix B exists such that has n copies of A in the row an...
1年以上 前
解決済み
Return median of a matrix
Compute median of a matrix of any dimension. Exclude the NaNs if any.
1年以上 前
解決済み
Cofactor
Given a matrix, find the cofactor of the element in 'i'th row and 'j'th column.
1年以上 前
