Write a program to transpose a matrix using a nested loop

Solution

X = [[12,7],
    [4 ,5],
    [3 ,8]]
result = [[0,0,0],
         [0,0,0]]
for i in range(len(X)):
   # iterate through columns
   for j in range(len(X[0])):
       result[j][i] = X[i][j]
for r in result:
   print(r)