【蓝桥杯】省赛：神奇闹钟
思路
python做这题很简单，灵活用datetime库即可
code
import os
import sys
# 请在此输入您的代码
import datetime
start = datetime.datetime(1970,1,1,0,0,0)
for _ in range(int(input())):
ls = input().split()
end = datetime.datetime.strptime(ls[0]+ls[1],"%Y-%m-%d%H:%M:%S")
x = int(ls[2])
n = (end-start)// datetime.timedelta(minutes=x)
ans = (start + n * datetime.timedelta(minutes = x)).strftime("%Y-%m-%d %H:%M:%S")
print(ans)