检测传感器读数卡死（Stuck Value）

def solve():
    from pyodide.http import open_url
    from io import StringIO
    import pandas as pd
    st_csv = open_url(____).read()
    st = pd.read_csv(StringIO(____))
    stuck_thresholds = {r['____']:r['____'] for _,r in st.iterrows()}
    readings = [
        (____),(____),(____),
        (____),(____),(____),
        (____),(____),
        (____),(____),(____),
    ]
    def detect_stuck(____):
        threshold = int(stuck_thresholds.get(____))
        if len(____) < threshold: return False, ____
        last_n = values[-threshold:]
        return len(set(____)) == ____, threshold
    by_device = {}
    for did, metric, val in readings:
        key = (____)
        by_device.setdefault(____).append(____)
    for (____), vals in by_device.items():
        stuck, n = detect_stuck(____)
        flag = "____" + str(____) + "____" if stuck else "____"
        print(did + "____" + metric + "____" + flag + "____" + str(____))