用c语言编写的escape Jurassic Island

writea"C"programwhichestimatestheprobabilitythatanexplorerwillsafelyescapefromadinosaur-andvolcano-infestedisland("JurassicIsland")bytakingrandomwalksacrossit.Aswellascalculatingtheprobabilityofescape,themeanandstandarddeviationofthepathlengthsshouldbed