题目描述 Bessie has gone to the mall's jewelry store and spies a charm bracelet. Of course, she'd like to fill it with the best charms possible from the N (1 ≤ N ≤ 3,402) available charms. Each charm i in the supplied list has a weight Wi (1 ≤ Wi ≤ 400),…

P2871 [USACO07DEC]手链Charm Bracelet 裸01背包. 看到自己1年半前写的30分code.......菜的真实(捂脸) #include<iostream> #include<cstdio> #include<cstring> #define re register using namespace std; int max(int a,int b){return a>b?a:b;} ],a,b; int main(){ scanf(&…

题目传送门:P2871 [USACO07DEC]手链Charm Bracelet 题目描述 Bessie has gone to the mall's jewelry store and spies a charm bracelet. Of course, she'd like to fill it with the best charms possible from the N (1 ≤ N ≤ 3,402) available charms. Each charm i in the supp…

题目描述 Bessie has gone to the mall's jewelry store and spies a charm bracelet. Of course, she'd like to fill it with the best charms possible from the N (1 ≤ N ≤ 3,402) available charms. Each charm i in the supplied list has a weight Wi (1 ≤ Wi ≤ 400),…

https://www.luogu.org/problem/show?pid=2871 题目描述 Bessie has gone to the mall's jewelry store and spies a charm bracelet. Of course, she'd like to fill it with the best charms possible from the N (1 ≤ N ≤ 3,402) available charms. Each charm i in the s…

题目描述 Bessie has gone to the mall's jewelry store and spies a charm bracelet. Of course, she'd like to fill it with the best charms possible from the N (1 ≤ N ≤ 3,402) available charms. Each charm i in the supplied list has a weight Wi (1 ≤ Wi ≤ 400),…

题目传送门 解题思路: 一维解01背包,突然发现博客里没有01背包的板子,补上 AC代码: #include<cstdio> #include<iostream> using namespace std; ]; int main() { scanf("%d%d",&n,&m); ;i <= n; i++) { scanf("%d%d",&c,&w); ; j--) if(c <= j) f[j] =…

题目传送门 这道题明显就是个01背包.所以直接套模板就好啦. #include<bits/stdc++.h> #define MAXN 30000 using namespace std; int f[MAXN],w[MAXN],c[MAXN],n,v; int main(){ scanf("%d%d",&n,&v); ;i<=n;i++) scanf("%d%d",&w[i],&c[i]); ;i<=n;i+…

题目描述 某校大门外长度为L的马路上有一排树,每两棵相邻的树之间的间隔都是1米.我们可以把马路看成一个数轴,马路的一端在数轴0的位置,另一端在L的位置:数轴上的每个整数点,即0,1,2,……,L,都种有一棵树. 由于马路上有一些区域要用来建地铁.这些区域用它们在数轴上的起始点和终止点表示.已知任一区域的起始点和终止点的坐标都是整数,区域之间可能有重合的部分.现在要把这些区域中的树(包括区域端点处的两棵树)移走.你的任务是计算将这些树都移走后,马路上还有多少棵树. 输入输出格式 输入格式: 输入文…

题目描述 随着智能手机的日益普及,人们对无线网的需求日益增大.某城市决定对城市内的公共场所覆盖无线网. 假设该城市的布局为由严格平行的129 条东西向街道和129 条南北向街道所形成的网格状,并且相邻的平行街道之间的距离都是恒定值 1 .东西向街道从北到南依次编号为0,1,2…128 , 南北向街道从西到东依次编号为0,1,2…128 . 东西向街道和南北向街道相交形成路口,规定编号为x 的南北向街道和编号为y 的东西向街道形成的路口的坐标是(x , y ). 在 某 些 路口存在一定数量的公共…