n=2, k0=1, k1=0
Optimal Minimum Distance: 2
Generator Matrices that generate Codes having Optimal Minimum Distance: 2,
Total No. of Codes having Optimal Minimum Distance: 1
Generator Matrices that generate Nice Codes : 1,
Total No. of Nice Codes: 1

Generator Matrix-1

a 0
b 0

Codewords:

0 0
b 0
a 0
c 0

dmin: 1
Weight Enumerator: 1x0 + 3x1 + 0x2
Complete Weight Enumerator: (X_0)2 + (X_0)1 (X_b)1 + (X_0)1 (X_a)1 + (X_0)1 (X_c)1

Dual Codewords:

0 0
0 a
0 b
0 c

Is it a nice code?: Yes

Generator Matrix-2

a a
b b

Codewords:

0 0
b b
a a
c c

dmin: 2
Weight Enumerator: 1x0 + 0x1 + 3x2
Complete Weight Enumerator: (X_0)2 + (X_b)2 + (X_a)2 + (X_c)2

Dual Codewords:

0 0

Is it a nice code?: No