spebern / moving_min_max Goto Github PK
View Code? Open in Web Editor NEWTrack minimum or maximum of a sliding window.
Track minimum or maximum of a sliding window.
The currently returned min/max is not the min/max of all elements currently in the queue, but something else.
I would expect following behaviour (different min after pre-last pop):
moving_min.push(2);
moving_min.push(1);
moving_min.push(3);
assert_eq!(moving_min.min(), Some(&1));
assert_eq!(moving_min.pop(), Some(2));
assert_eq!(moving_min.min(), Some(&1));
assert_eq!(moving_min.pop(), Some(1));
assert_eq!(moving_min.min(), Some(&3));
assert_eq!(moving_min.pop(), Some(3));
assert_eq!(moving_min.min(), None);
assert_eq!(moving_min.pop(), None);
The recalculation of min/max on moving to the second stack seems not be 100% correct.
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