背包

#include<cstdio>
#include<algorithm>
using namespace std;
int n,m,Len;
long long F[2][100005];
struct node{
int c,f,v;
}E[100005];
bool cmp(node a,node b){
return a.f>b.f || (a.f==b.f && a.c>b.c);
}
int main(){
scanf("%d",&n);
for (int i=1; i<=n; i++) scanf("%d%d%d",&E[i].c,&E[i].f,&E[i].v);
for (int i=1; i<=n; i++) E[i].v=-E[i].v;
scanf("%d",&m);
for (int i=1; i<=m; i++) scanf("%d%d%d",&E[i+n].c,&E[i+n].f,&E[i+n].v);
for (int i=1; i<=m; i++) E[i+n].c=-E[i+n].c;
Len=n+m;
sort(E+1,E+Len+1,cmp);
int Max=0;
for (int i=0; i<Len; i++){
int tomax=Max;
if (E[i+1].c>0) tomax+=E[i+1].c;
for (int j=0; j<=Max; j++) F[(i+1)%2][j]=F[i%2][j];
for (int j=Max+1; j<=tomax; j++) F[(i+1)%2][j]=-1ll<<60;
for (int j=0; j<=Max; j++)
if (j+E[i+1].c>=0) F[(i+1)%2][j+E[i+1].c]=max(F[(i+1)%2][j+E[i+1].c],F[i%2][j]+E[i+1].v);
Max=tomax;
}
long long ans=0;
for (int i=0; i<=Max; i++) ans=max(ans,F[Len%2][i]);
printf("%lld\n",ans);
return 0;
}

  

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