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Cod sursa(job #777320)
/* Energii */
#include<fstream>
using namespace std;
ifstream f("energii.in");
ofstream g("energii.out");
int n,w,i,j;
int m[3][5001];
int e[1001],c[1001];
int main()
{f>>n>>w;
for(i=1; i<=n; i++)
f>>e[i]>>c[i];
for(i=1; i<=n; i++)
{for(j=1; j<=w; j++)
{if(j>e[i])
{if((m[0][j]==0 || m[0][j]>m[0][j-e[i]]+c[i]) && m[0][j-e[i]]!=0)
m[1][j]=m[0][j-e[i]]+c[i];
else
m[1][j]=m[0][j];}
else
{if(m[0][j]==0 || c[i]<m[0][j])
m[1][j]=c[i];
else
m[1][j]=m[0][j];}
}
for(j=1; j<=w; j++)
m[0][j]=m[1][j];
}
g<<m[1][w];
return 0;}