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Cod sursa(job #735992)
#include <fstream>
using namespace std;
ifstream in("rucsac.in");
ofstream out("rucsac.out");
const long long inf=2000000000;
const int N=5006;
long long v[N],p[N],g[N];
int main()
{
long long n,k,i,j,max;
in>>n>>k;
for(i=1;i<=n;i++)
in>>g[i]>>p[i];
for(i=1;i<=k;i++)
v[i]=-inf;
v[0]=0;
for(i=1;i<=n;i++)
{
for(j=k-g[i];j>=0;j--)
{
if(v[j]!=-inf)
{
if(v[j+g[i]]<v[j]+p[i])
v[j+g[i]]=v[j]+p[i];
}
}
}
max=0;
for(i=1;i<=k;i++)
if(v[i]>max)
max=v[i];
out<<max;
return 0;
}