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Cod sursa(job #556998)
#include <fstream.h>
ifstream f("energii.in");
ofstream g("energii.out");
int A[2001],E[2001],C[2001],c[2001],i,j,n,e,min;
int main(){
f>>n;
f>>e;
for(i=1;i<=n;i++)
{
f>>E[i];
f>>C[i];
}
A[0]=1;
for(i=1;i<=e;i++)
c[i]=200000000;
min=200000000;
for(i=1;i<=n;i++)
for(j=e;j>=0;j--)
if(A[j]==1)
{
A[j+E[i]]=1;
if(c[j+E[i]]>c[j]+C[i])
c[j+E[i]]=c[j]+C[i];
if(A[e])
if(c[e]<min)
min=c[e];
}
g<<min;
return 0;
}