Matrix subtraction



Problem to subtract the given two matrix.



Example-1:


Input    : n1 = [[4,3],[2,1]]  n2 = [[1,1],[1,1]]
Output   : [[3, 2], [1, 0]] 


Example-2:


Input    : n1 = [[1,2,3],[4,5,6],[7,8,9]]  n2 = [[9,8,7],[6,5,4],[3,2,1]]
Output   : [[-8, -6, -4], [-2, 0, 2], [4, 6, 8]]   







Solution





n1 = [[4,3],[2,1]]

n2 = [[1,1],[1,1]]

c = []

for i in range(len(n1)):

    k = []

    for j in range(len(n2)):

        k.append(0)

    c.append(k)

for x in range(len(n1)):

    for y in range(len(n2)):

        c[x][y] = n1[x][y] - n2[x][y]
        
print(c)



Output



[[3, 2], [1, 0]]