摘要：#include<cstdio> #include<cstring> #include<algorithm> #define LL long long using namespace std; const int M=2e5+7; int read(){ int ans=0,f=1,c=getcha 阅读全文

摘要：Polycarp is in really serious trouble — his house is on fire! It's time to save the most valuable items. Polycarp estimated that it would take tisecon 阅读全文

摘要：有N种物品，每种物品的数量为C1，C2......Cn。从中任选若干件放在容量为W的背包里，每种物品的体积为W1，W2......Wn（Wi为整数），与之相对应的价值为P1,P2......Pn（Pi为整数）。求背包能够容纳的最大价值。 Input 第1行，2个整数，N和W中间用空格隔开。N为物品的 阅读全文