diff --git a/generator.c b/generator.c
index 1800402..1b13d1d 100644
--- a/generator.c
+++ b/generator.c
@@ -195,10 +195,13 @@ void genSolution(int permutation[])
 {
 	int r;
 
+	// initialize array to indices
 	for (int i = 0; i < graph.V; i++) {
 		permutation[i] = i;
 	}
 	
+	// loop from end to start, choose random and switch
+	// with number at current index.
 	for (int i = (graph.V - 1); i > 0; i--) {
 		r = rand() % (i+1);
 		int tmp = permutation[r];