I got TL#6.

After that just a little bit updated my solution:

int max( int pos, int len )
{
..if ( ch[pos][len] )
....return dp[pos][len];
---
....ch[pos][len] = 1;
....dp[pos][len] = res;
....return res;
---
}

and got AC in 0.015s.

Edited by author 23.03.2010 20:30