you cand generate tests yourself and compare with a brute force algorithm...

I mean some tricky tests.

0.568 sec

My btute-force program gets WA3
by the way, some people have already solved this problem on java

Edited by author 08.08.2007 21:11

I had WA3 when didn't look through all the powers of 10 (38 is the last one) for my prebuild table.

Try these:
2
0 0 0 8
0 0 0 9
--> 0

2
0 0 0 4
0 0 0 12
--> 0

Another test:
2
0 0 0 10
0 0 0 0
--> 2

Edited by author 24.08.2011 00:31

2
0 0 0 0
4294967295 4294967295 4294967295 4294967295
--> 76