SoL:01背包。。。
#include <cstdio> #include <iostream> #include <cstring> #include <algorithm> using namespace std; const int maxm = 1000 + 10; const int maxn = 100 + 10; int dp[maxm]; int value[maxn];//每袋的价格 int weight[maxn];//每袋的重量 int nValue,nKind; //0-1背包,代价为cost,获得的价值为weight void ZeroOnePack(int cost,int weight) { for(int i=nValue;i>=cost;i--) dp[i]=max(dp[i],dp[i-cost]+weight); } int main() { while(~scanf("%d%d",&nValue,&nKind)) { for(int i=0;i<nKind;i++) scanf("%d%d",&value[i],&weight[i]); memset(dp,0,sizeof(dp)); for(int i=0;i<nKind;i++) ZeroOnePack(value[i],weight[i]); printf("%d\n",dp[nValue]); } return 0; }
原文:http://blog.csdn.net/imutzcy/article/details/18324853