roles) || in_array('administrator', $user->roles) || in_array('admin', $user->roles ) ) { ?>
probname); ?>
Topic Classification: nid, "Topic Classification"); ?> Tags: nid, "Problem Tag");?>
Topics: nid, "Topics"); ?> Prerequisites: nid, "Prerequisites"); ?>
Supplies: nid, "Supplies"); ?> Pedagogy: nid, "Pedagogy"); ?>
Grade Vs Difficulty:
  EasyModerateChallengingPerplexing
1-2
3-4
5-6
7-8
9-10
11-12
13-14
Solution: nid, "Solution"); ?>
Problem

In a certain small country there are villages, expressways, and fields. Expressways only lead from one village to another and do not cross one another, and it is possible to travel from any village to any other village along the expressways. Each field is completely enclosed by expressways and villages. If there are 100 villages and 141 expressways, then how many fields are there?

Details
Source Title: Circle in a Box
Source Author: Sam Vandervelde
Source URL: http://www.mathcircles.org/node/65
Authors
nid); while ($data = db_fetch_object($authorresult)) { $authorfirstname = $data->firstname; $authorlastname = $data->lastname; $authors = $authorfirstname . ' ' . $authorlastname; print $authors; ?>
References
nid); if (mysql_num_rows($refresult) > 0 ) { ?> nmcreferenceid; $referenceauthor = $data->author; $referencetitle = $data->title; $referenceurl = $data->url; ?> 0 ) { print '
Reference Author Reference Title Reference URL
'; } ?>
nid); $totalSets = mysql_num_rows($setsResult); if ($totalSets > 0) { ?>
Problem Sets This Problem Belongs to:
parent_nid; ?> Set:
VARIABLES
nid, 1); while ($data = db_fetch_object($variablesresult)) { $variable = $data->elementdata; ?> •


DEFINITIONS
nid); while ($data = db_fetch_object($defresult)) { $definitionid = $data->nmcdefinitionid; $definition = $data->definition; $definitionname = $data->definitionname; ?> •