题目描述 Farmer John and his herd are playing frisbee. Bessie throws the frisbee down the field, but it's going straight to Mark the field hand on the other team! Mark has height H (1 <= H <= 1,000,000,000), but there are N cows on Bessie's team gathere…

题目描述 Farmer John and his herd are playing frisbee. Bessie throws the frisbee down the field, but it's going straight to Mark the field hand on the other team! Mark has height H (1 <= H <= 1,000,000,000), but there are N cows on Bessie's team gathere…

题意翻译 FJ将飞盘抛向身高为H(1 <= H <= 1,000,000,000)的Mark,但是Mark被N(2 <= N <= 20)头牛包围.牛们可以叠成一个牛塔,如果叠好后的高度大于或者等于Mark的高度,那牛们将抢到飞盘. 每头牛都一个身高,体重和耐力值三个指标.耐力指的是一头牛最大能承受的叠在他上方的牛的重量和.请计算牛们是否能够抢到飞盘.若是可以,请计算牛塔的最大稳定强度,稳定强度是指,在每头牛的耐力都可以承受的前提下,还能够在牛塔最上方添加的最大重量. 题目描述 F…

题目描述 Farmer John and his herd are playing frisbee. Bessie throws the frisbee down the field, but it's going straight to Mark the field hand on the other team! Mark has height H (1 <= H <= 1,000,000,000), but there are N cows on Bessie's team gathere…

题目描述 FJ将飞盘抛向身高为H(1 <= H <= 1,000,000,000)的Mark,但是Mark 被N(2 <= N <= 20)头牛包围.牛们可以叠成一个牛塔,如果叠好后的高度大于或者等于Mark的高度,那牛们将抢到飞盘. 每头牛都一个身高,体重和耐力值三个指标.耐力指的是一头牛最大能承受的叠在他上方的牛的重量和.请计算牛们是否能够抢到飞盘.若是可以,请计算牛塔的最大稳定强度,稳定强度是指,在每头牛的耐力都可以承受的前提下,还能够在牛塔最上方添加的最大重量. 输入输出样…

题目:https://www.luogu.org/problemnew/show/P3112 状压dp.发现只需要记录当前状态的牛中剩余承重最小的值. #include<iostream> #include<cstdio> #include<cstring> #include<algorithm> #define ll long long using namespace std; ,Lm=(<<)+,INF=1e9+; ; ll h,dp[Lm]…

->题目链接 题解: 贪心+模拟 #include<algorithm> #include<iostream> #include<cstring> #include<cstdio> using namespace std; ; ],w[],s[],f[(<<)+],g[(<<)+],ans=-; int main() { scanf("%d%d",&n,&H); ; i<=n-; i++…

设f[s]为已经从上到下叠了状态为s的牛的最大稳定度,转移的话枚举没有在集合里并且强壮度>=当前集合牛重量和的用min(f[s],当前放进去的牛还能承受多种)来更新,高度的话直接看是否有合法集合的高度达到要求即可 #include<iostream> #include<cstdio> using namespace std; const int N=25; int n,m,h[N],w[N],a[N],f[2000005],ans=-1; int main() { scanf…

题目:https://www.luogu.org/problemnew/show/P3112 状压DP...转移不错. 代码如下: #include<iostream> #include<cstdio> #include<cstring> #include<algorithm> using namespace std; typedef long long ll; ll <<),inf=1e18; ll n,H,h[],w[],s[],f[maxn…

#include <iostream> #include<vector> #include <stack> #include<map> #include<list> #include <sstream> #include <algorithm>//里边有好多现成的函数 #include <queue> using namespace std; struct TreeNode { int val; struct…