Method get

java/0460-lfu-cache.java:23–28

(int key)

    }

    public int get(int key) {
        Entry e = entries.get(key);
        if (e == null) return -1;
        updateFrequency(e);
        return e.value;
    }

    public void put(int key, int value) {
        if (capacity == 0) return;