egyptian_fraction_code

Algorithms/Greedy Algorithm/Egyptian Fraction.cpp

@@ -0,0 +1,52 @@
+#include <iostream>
+using namespace std;
+
+void printEgyptian(int nr, int dr)
+{
+	// If either numerator or denominator is 0
+	if (dr == 0 || nr == 0)
+		return;
+
+	// If numerator divides denominator, then simple division
+	// makes the fraction in 1/n form
+	if (dr%nr == 0)
+	{
+		cout << "1/" << dr/nr;
+		return;
+	}
+
+	// If denominator divides numerator, then the given number
+	// is not fraction
+	if (nr%dr == 0)
+	{
+		cout << nr/dr;
+		return;
+	}
+
+	// If numerator is more than denominator
+	if (nr > dr)
+	{
+		cout << nr/dr << " + ";
+		printEgyptian(nr%dr, dr);
+		return;
+	}
+
+	// We reach here dr > nr and dr%nr is non-zero
+	// Find ceiling of dr/nr and print it as first
+	// fraction
+	int n = dr/nr + 1;
+	cout << "1/" << n << " + ";
+
+	// Recur for remaining part
+	printEgyptian(nr*n-dr, dr*n);
+}
+
+// Driver Program
+int main()
+{
+	int nr = 6, dr = 14;
+	cout << "Egyptian Fraction Representation of "
+		<< nr << "/" << dr << " is\n ";
+	printEgyptian(nr, dr);
+	return 0;
+}