--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/opt/bbmap-39.01-1/current/fun/Chance.java	Tue Mar 18 16:23:26 2025 -0400
@@ -0,0 +1,49 @@
+package fun;
+
+import java.util.Locale;
+import java.util.Random;
+
+import shared.Parse;
+import shared.Shared;
+
+public class Chance {
+	
+	//Probability of something with a chance of X happening at least Y times in Z chances
+	public static void main(String[] args){
+		
+		int draws;
+		int minSuccess;
+		float prob;
+		long rounds;
+		try {
+			draws = Parse.parseIntKMG(args[0]);
+			minSuccess = Parse.parseIntKMG(args[1]);
+			prob = Float.parseFloat(args[2]);
+			rounds = Parse.parseKMG(args[3]);
+		} catch (Exception e) {
+			System.err.println("Chance (int)draws (int)minSuccess (float)prob (int)rounds");
+			System.exit(1);
+			throw new RuntimeException();
+		}
+		
+		Random randy=Shared.threadLocalRandom();
+		
+		long passes=0;
+		for(long i=0; i<rounds; i++){
+			int pass=runOneRound(randy, draws, minSuccess, prob);
+			passes+=pass;
+		}
+		
+		double odds=passes*1.0/rounds;
+		System.err.println("Probability: "+String.format(Locale.ROOT, "%.6f%%", 100*odds));
+	}
+
+	private static int runOneRound(Random randy, int draws, int minSuccess, float prob) {
+		int success=0;
+		for(int i=0; i<draws && success<minSuccess; i++){
+			if(randy.nextFloat()<=prob){success++;}
+		}
+		return (success>=minSuccess ? 1 : 0);
+	}
+	
+}