updates after codewars submission...

change logic from 'divisible by' to 'greater than divisor'
deconstruct tuple for better readability

src/main.rs

@@ -27,13 +27,10 @@ fn func(num: i32) -> String {
 
     let mut num = num;
 
-    while let Some(div) = stack.pop() {
-        while num/div.0 > 0 {
-            out.push(div.1);
-            num -= div.0;
-        } 
-        if num == 0 {
-            break
+    while let Some((divisor, numeral)) = stack.pop() {
+        while num > divisor {
+            out.push(numeral);
+            num -= divisor;
         } 
     }