Create Prisoner structure to save results.

src/main.rs

@@ -26,6 +26,7 @@ extern crate rand;
 
 use structopt::StructOpt;
 
+// define the commandline parameters
 #[derive(StructOpt)]
 #[structopt(about = "An implementation of the Skyum's Protocol.")]
 struct Opt
@@ -34,7 +35,17 @@ struct Opt
 	size:u32,
 }
 
+// define the prisoner data
+struct Prisoner
+{
+	// if the prisoner found his number
+	found:bool,
+	// number of attempt he found it in
+	attempts:u32,
+}
+
 fn main() {
+	// read the commandline parameters
 	let opts = Opt::from_args();
 
 	// set number of prisoners in experiment
@@ -58,23 +69,30 @@ fn main() {
 		}
 	}
 
-	// assume that all the prisoners have found their number
-	let mut all_found = true;
+	// create the vector of prisoners
+	let mut prisoners:Vec<Prisoner> = Vec::with_capacity(size as usize);
+
 	// for every prisoner in the jail
 	for i in 0..size
 	{
+		// create the prisoner for index `i`
+		let mut prisoner_i = Prisoner {
+			// assume the prisoner does not find his box
+			found: false,
+			// set number of attempts to 0
+			attempts: 0,
+		};
 		// the next (first) box the prisoner is to open is the one with his number (`i`)
 		let mut next_box:usize = i as usize;
-		// assume the prisoner does not find his box
-		let mut found = false;
 		// for every attempt the prisoner has (i.e. `size/2`)
 		for _j in 0..(size/2)
 		{
+			prisoner_i.attempts += 1;
 			// if the number inside the box is his number
 			if boxes[next_box] == i
 			{
 				// assign `found` to true
-				found = true;
+				prisoner_i.found = true;
 				// stop looking through more boxes.
 				break;
 			}
@@ -84,20 +102,18 @@ fn main() {
 				next_box = boxes[next_box] as usize;
 			}
 		}
-		// if a prisoner has not found his number in `size/2` attempts
-		if !found
-		{
-			all_found = false;
-		}
+
+		// add prisoner to list of prisoners in experiment
+		prisoners.push(prisoner_i);
 	}
 
 	// print result
-	if all_found
-	{
-		println!("success");
-	}
-	else
+	if prisoners.iter().any(|i| !i.found)
 	{
 		println!("failure");
 	}
+	else
+	{
+		println!("success");
+	}
 }