36 lines
1,012 B
C#
36 lines
1,012 B
C#
using System;
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class Program
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{
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static void Main(string[] args)
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{
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int switchWins = 0;
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int stayWins = 0;
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Random gen = new Random();
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for(int plays = 0; plays < 1000000; plays++ )
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{
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int[] doors = {0,0,0};//0 is a goat, 1 is a car
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var winner = gen.Next(3);
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doors[winner] = 1; //put a winner in a random door
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int choice = gen.Next(3); //pick a door, any door
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int shown; //the shown door
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do
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{
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shown = gen.Next(3);
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}
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while (doors[shown] == 1 || shown == choice); //don't show the winner or the choice
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stayWins += doors[choice]; //if you won by staying, count it
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//the switched (last remaining) door is (3 - choice - shown), because 0+1+2=3
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switchWins += doors[3 - choice - shown];
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}
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Console.Out.WriteLine("Staying wins " + stayWins + " times.");
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Console.Out.WriteLine("Switching wins " + switchWins + " times.");
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}
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}
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