Add 21-50 question of 01/22

Ingegneria del Software/44/wrong.txt

@@ -0,0 +1,22 @@
+<pre>
+block MarkovChain
+//external function myrandom() returns a random real number in [0, 1]
+parameter Integer x0 = 0;
+parameter Integer xmax = 100;
+OutputInteger x; // Connector
+algorithm
+when initial() then
+x := x0;
+elsewhen sample(0, 1) then
+if (x < xmax)
+then
+if (myrandom() <= 0.8)
+then
+x := x + 1;
+else
+x := x - 1;
+end if;
+end if;
+end when;
+end MarkovChain
+</pre>