задача3

import pandas as pd
support_log = pd.read_csv('/datasets/support_log.csv')
support_log_grouped = support_log.groupby('type_id').count()

def alert_group(messages):
    if messages <= 300:
        return 'средний'
    if messages <=500:
        return 'высокий'
    return 'критичный'

#print(alert_group(10))
#print(alert_group(450))
#print(alert_group(1000))

support_log_grouped['alert_group'] = support_log_grouped['user_id'].apply(alert_group)
print(support_log_grouped.head(10))