1634: [Usaco2007 Jan]Protecting the Flowers 护花 Time Limit: 5 Sec Memory Limit: 64 MBSubmit: 493 Solved: 310[Submit][Status] Description Farmer John went to cut some wood and left N (2 <= N <= 100,000) cows eating the grass, as usual. When he retur…
Description Farmer John went to cut some wood and left N (2 <= N <= 100,000) cows eating the grass, as usual. When he returned, he found to his horror that the cows were in his garden eating his beautiful flowers. Wanting to minimize the subsequent…
因为交换相邻两头牛对其他牛没有影响,所以可以通过交换相邻两头来使答案变小.按照a.t*b.f排降序,模拟着计算答案 #include<iostream> #include<cstdio> #include<algorithm> using namespace std; const int N=100005; int n; long long ans,sum; struct qwe { int v,t; }a[N]; bool cmp(const qwe &a,c…
1634: [Usaco2007 Jan]Protecting the Flowers 护花 Time Limit: 5 Sec Memory Limit: 64 MBSubmit: 448 Solved: 276[Submit][Status] Description Farmer John went to cut some wood and left N (2 <= N <= 100,000) cows eating the grass, as usual. When he retur…
1634: [Usaco2007 Jan]Protecting the Flowers 护花 Time Limit: 5 Sec Memory Limit: 64 MBSubmit: 885 Solved: 575[Submit][Status][Discuss] Description Farmer John went to cut some wood and left N (2 <= N <= 100,000) cows eating the grass, as usual. When…
题目描述 Farmer John went to cut some wood and left N (2 <= N <= 100,000) cows eating the grass, as usual. When he returned, he found to his horror that the cows were in his garden eating his beautiful flowers. Wanting to minimize the subsequent damage,…
Description 约翰留下了 N 只奶牛呆在家里,自顾自地去干活了,这是非常失策的.他还在的时候,奶牛像 往常一样悠闲地在牧场里吃草.可是当他回来的时候,他看到了一幕惨剧:他的奶牛跑进了他的花园, 正在啃食他精心培育的花朵!约翰要立即采取行动,挨个把它们全部关回牛棚. 约翰牵走第 i 头奶牛需要 T i 分钟,因为要算来回时间,所以他实际需要 2 · T i 分钟.第 i 头奶牛 如果还在花园里逍遥,每分钟会啃食 Di 朵鲜花.但只要约翰抓住了它,开始牵走它的那刻开始,就 没法吃花了.请帮…
NC25043 [USACO 2007 Jan S]Protecting the Flowers 题目 题目描述 Farmer John went to cut some wood and left \(N (2 ≤ N ≤ 100,000)\) cows eating the grass, as usual. When he returned, he found to his horror that the cluster of cows was in his garden eating hi…
http://poj.org/problem?id=3262 Protecting the Flowers Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 4930 Accepted: 1965 Description Farmer John went to cut some wood and left N (2 ≤ N ≤ 100,000) cows eating the grass, as usual. When…
1636: [Usaco2007 Jan]Balanced Lineup Time Limit: 5 Sec Memory Limit: 64 MBSubmit: 476 Solved: 345[Submit][Status] Description For the daily milking, Farmer John's N cows (1 <= N <= 50,000) always line up in the same order. One day Farmer John deci…
1635: [Usaco2007 Jan]Tallest Cow 最高的牛 Time Limit: 5 Sec Memory Limit: 64 MBSubmit: 346 Solved: 184[Submit][Status] Description FJ's N (1 <= N <= 10,000) cows conveniently indexed 1..N are standing in a line. Each cow has a positive integer height…
题目 1635: [Usaco2007 Jan]Tallest Cow 最高的牛 Time Limit: 5 Sec Memory Limit: 64 MB Description FJ's N (1 <= N <= 10,000) cows conveniently indexed 1..N are standing in a line. Each cow has a positive integer height (which is a bit of secret). You are t…
RMQ.. ------------------------------------------------------------------------------- #include<cstdio> #include<cstring> #include<algorithm> #include<iostream> #define rep( i , n ) for( int i = 0 ; i < n ; ++i ) #define clr( x…
1635: [Usaco2007 Jan]Tallest Cow 最高的牛 Time Limit: 5 Sec Memory Limit: 64 MBSubmit: 383 Solved: 211[Submit][Status] Description FJ's N (1 <= N <= 10,000) cows conveniently indexed 1..N are standing in a line. Each cow has a positive integer height…
