![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhIRmMzZXrdaCr9yDrgFrEAS52Gi1VV3XdPv9Q_mJaX1-2kn23wtE3kedfHhTPDjgsDQfPS1HhCKbgs_IP0RP3SvERYbog7mq4yj9niEp8HfYhtlFhRLlyjbdRPmHCqw46r7C2otw/s320/581d15001.png)
All problems are ready: http://apps.topcoder.com/wiki/display/tc/SRM+581.
I liked this problem set. Specially the Tree Union problems.
I think the div1 250 explanation might be a bit weak. I hesitated to write it during the whole afternoon, but I couldn't find a great way to explain it.
2 comments :
What do you mean by "a bit weak" for div1 250pt? I felt the surveillance camera question was too hard to interpret the requirements, so it was not great for an SRM. But I'll admit that it was a fun problem once I understood the full requirements.
I mean *my* explanation is a bit weak.
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