0工作时长 - 蓝桥云课 (lanqiao.cn)

import datetime
time_str_list=[]
while(True):tmp=input()if not tmp: breaktime_str_list.append(tmp)#
time_list=[datetime.datetime.strptime(t,"%Y-%m-%d %H:%M:%S")for t in time_str_list]
time_list.sort()
sum=0
for i in range(len(time_str_list)>>1):seconds=time_list[2*i+1]-time_list[2*i]# print(seconds)# print("++++++++++++")# print(seconds.total_seconds())sum+=seconds.total_seconds()
print(f'{sum:.0f}')
 

 0与或异或 - 蓝桥云课 (lanqiao.cn)

 

# 创建dp方程
arr = list([0] * 5 for _ in range(5))
op_ = [0]*11ans=0