Cod sursa(job #873616)
Utilizator | Bratie Fanut bratiefanut | Data | 7 februarie 2013 14:47:21 |
---|---|---|---|
Problema | Energii | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.54 kb |
#include<fstream>
using namespace std;
ifstream f("energii.in");
ofstream g("energii.out");
int n,i,j,R,v[100000],p,ii,C,E,k;
int main ()
{
f>>n>>R;
for(i=1; i<=n; i++)
{
f>>E>>C;
for(j=R; j>=E; j--)
{
if(v[j-E]!=0&&v[j]!=0)
if(v[j]>v[j-E]+C)
v[j]=v[j-E]+C;
if(v[j-E]!=0)
v[j]=v[j-E]+C;
if(v[j]==0&&j-E==0)
v[j]=C;
}
}
for(k=1;k<=R;k++)
if(v[k]>=R)
{g<<v[k];k=R;p=0;}
if(p==1)
g<<-1;
return 0;
}