Show discovery rate

main.cc

@@ -56,7 +56,7 @@ class World
 	public:
 		// Constructor
 		World(unsigned int l_, unsigned int h_, double p)
-			:l(l_), h(h_), size(l_ * h_), tileQuantity(size)
+			:l(l_), h(h_), size(l_ * h_), tileQuantity(l_ * h_)
 		{
 			board = new int[size]();
 
@@ -93,7 +93,7 @@ class World
 
 		// Copy constructor
 		World(const World& other)
-			:l(other.l), h(other.h), size(other.size)
+			:l(other.l), h(other.h), size(other.size), tileQuantity(other.tileQuantity)
 		{
 			board = new int[size]();
 
@@ -353,7 +353,8 @@ class World
 			else
 				cout << "FAILURE ..." << endl;
 
-			cout << discovered.size() << " tiles discovered;" << endl;
+			const unsigned int discoveryRate(100 * discovered.size() / tileQuantity);
+			cout << discovered.size() << " tiles discovered (" << discoveryRate << "%);" << endl;
 			cout << path.size() << " path length." << endl;
 		}