linkedlist output

0 : 0 if equal, Non-Zero if inequal
1 : 0 if equal, Non-Zero if inequal
1 : 0 if equal, Non-Zero if inequal
0
0
0
Value: 2.000000
Value: 4.000000
Value: 6.000000
0
Key not found
Value: 7.000000
0
0
0
Value: 2.000000
Value: 6.000000
Key not found
0
Key not found
Value: 7.000000