Given n (always odd), return output a that has concentric rings of the 69s and 0s around the center point. Examples:
Input n = 3
Output a is [ 69 69 69
69 0 69
69 69 69 ] Input n = 5
Output a is [ 0 0 0 0 0
0 69 69 69 0
0 69 0 69 0
0 69 69 69 0
0 0 0 0 0]
Create a square matrix of multiples
310 Solvers
105 Solvers
Generate a string like abbcccddddeeeee
149 Solvers
Given a 4x4 matrix, swap the two middle columns
279 Solvers
Find the index of the largest value in any vector X=[4,3,4,5,9,12,0,4.....5]
215 Solvers
Solution 662218
despites its pass,my sol still wrong when it be the case:"n=7",because the central element always zero no matter how we change input "n",