Ranking methods: Difference between revisions

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 <lang python>def mc_rank(iterable, start=1):
     """Modified competition ranking"""
-    first, fifo = True, []
+    lastresult, lastrank, fifo = None, None, []
-    for item in iterable:
+    for n, item in enumerate(iterable, start-1):
-        if first:
+        if item[0] == lastresult:
-            first = False
+            fifo += [item]
-            last, delta = item[0], 1
-            fifo.append(item)
         else:
-            if item[0] != last:
+            while fifo:
-                start += delta
+                yield n, fifo.pop(0)
-                while fifo:
+            lastresult, lastrank, fifo = item[0], n, fifo + [item]
-                    yield start - 1, fifo.pop(0)
-                delta = 1
-            else:
-                delta += 1
-            last = item[0]
-            fifo.append(item)
-    start += delta
     while fifo:
-        yield start - 1, fifo.pop(0)
+        yield n+1, fifo.pop(0)