This problem can be solved by pre-school children in five to ten minutes, by programmers in an hour and by people with higher education...well, check it yourself.
8809 = 6
7111 = 0
2172 = 0
6666 = 4
1111 = 0
3213 = 0
7662 = 2
9313 = 1
0000 = 4
2222 = 0
3333 = 0
5555 = 0
8193 = 3
8096 = 5
1012 = 1
7777 = 0
9999 = 4
7756 = 1
6855 = 3
9881 = 5
5531 = 0
2581 = ?
Answer of this puzzle is the password of attached file.
Please do not write your answer here. Give a chance to other to resolve it....
CAclubindia
