1619: [Usaco2008 Nov]Guarding the Farm 保卫牧场 Time Limit: 5 Sec Memory Limit: 64 MBSubmit: 498 Solved: 223[Submit][Status] Description The farm has many hills upon which Farmer John would like to place guards to ensure the safety of his valuable milk…
题目 1619: [Usaco2008 Nov]Guarding the Farm 保卫牧场 Time Limit: 5 Sec Memory Limit: 64 MB Submit: 491 Solved: 218 [Submit][Status] Description The farm has many hills upon which Farmer John would like to place guards to ensure the safety of his valuable…
Description The farm has many hills upon which Farmer John would like to place guards to ensure the safety of his valuable milk-cows. He wonders how many guards he will need if he wishes to put one on top of each hill. He has a map supplied as a matr…
A. Combination Lock time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Scrooge McDuck keeps his most treasured savings in a home safe with a combination lock. Each time he wants to put there…