题目描述： 1003.Emergency(25) Asanemergencyrescueteamleaderofacity,youaregivenaspecialmapofyourcountry.Themapshowsseveralscatteredcitiesconnectedbysomeroads.Amountofrescueteamsineachcityandthelengthofeachroadbetweenanypairofcitiesaremarkedonthemap.Whenthereisanemergencycalltoyoufromsomeothercity,yourjob...