模板题。 #include<iostream>#include<string>#include<cstring>#include<cstdio>#include<cmath>#include<iomanip>#include<map>#include<algorithm>#include<queue>#include<set>#define inf 10000000#d

Drainage Ditches Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 16292 Accepted Submission(s): 7737 Problem Description Every time it rains on