compiled and logically correct

src/main.rs

@@ -0,0 +1,68 @@
+use gpu_rand::xoroshiro::{rand_core::RngCore, Xoshiro256PlusPlus};
+use rayon::prelude::*;
+use std::time::{Duration, Instant};
+
+const MINS: u64 = 60;
+const HOURS: u64 = 60 * MINS;
+const DAYS: u64 = 24* HOURS;
+
+
+fn main() -> anyhow::Result<()> {
+    let total_iterations = 1000000000; //Number of times to run
+    let rng_states = Xoshiro256PlusPlus::initialize_states(1234, total_iterations); //Create 1 RNG per iteration
+                                                                                    //Same seed, offset to ensure independance
+    let timer = Instant::now(); //Capture instant the process starts
+
+    let result = rng_states.into_par_iter() //Multi-threaded iteration
+        .map(|rng| { //Replace each RNG with it's result
+            (0..231).into_iter() //Roll dice 232 times
+                .reduce(|count, _| //Reduce all dice rolls to a total of value 4 results 
+                    match roll_dice(rng) {
+                        0 => count + 1 , //Increment count if 4 is rolled
+                        _ => 0 , //Reset count to ensure value 4 rolls are consecutive
+                    }
+                ).unwrap()
+        }).max() //Reduce all iteration results to the highest result
+    .unwrap();
+
+    let timer = TimerResult::from_duration(timer.elapsed()); //Capture duration of elapsed time
+                                                             //since timer creation
+    let days = timer.days;
+    let hours = timer.hours;
+    let minutes = timer.minutes;
+    let seconds = timer.seconds;
+
+    Ok(println!("Highest number of Ones: {result} (completed in {days} days, {hours} hours, {minutes} minutes, and {seconds} seconds)"))
+}
+
+fn roll_dice(mut rng: Xoshiro256PlusPlus) -> u64 {
+    rng.next_u64() % 4
+}
+
+struct TimerResult {
+    days: u64,
+    hours: u64,
+    minutes: u64,
+    seconds: u64,
+}
+impl TimerResult {
+    fn from_duration(duration: Duration) -> Self {
+        let duration = duration.as_secs();
+
+        let days =  duration / DAYS;
+        let duration = duration % DAYS;
+    
+        let hours = (duration % DAYS) / HOURS;
+        let duration = duration % HOURS;
+
+        let minutes = duration / MINS;
+        let seconds = duration % MINS / MINS;
+
+        Self {
+            days,
+            hours,
+            minutes,
+            seconds,
+        }
+   }
+}