Refactor repo structure

Data/Questions/ingsw/0721_28/wrong2.txt

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+<pre>
+block MarkovChain
+//external function myrandom() returns a random real number in [0, 1]
+parameter Real x0 = 1;
+OutputReal x;
+algorithm
+when initial() then
+x := x0;
+elsewhen sample(0, 1) then
+if (myrandom() <= 0.7)
+then
+    if (myrandom() <= 0.9)
+    then
+     x := 1.1*x;   
+    else
+     x := 0.9*x; 
+     end if;
+else
+   x := 0.73*x; 
+end if;
+end when;
+end MarkovChain;
+</pre>