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Cod sursa(job #627986)
#include<iostream>
#include<fstream>
using namespace std;
int G,n,x[100],xm[100],pmax,nrob;
struct obiect { int p,g; };
obiect a[100];
void back(int i,int g,int p)
{
int j,gramas,pramas,k;
for(j=x[i-1]+1;j<=n;j++)
{
x[i]=j;
gramas=g+a[j].g;
pramas=p+a[j].p;
if(gramas<=G)
{
if(pmax<pramas)
{
pmax=pramas;
for(k=1;k<=i;k++)
{
xm[k]=x[k];
}
nrob=i;
}
}
back(i+1,gramas,pramas);
}
}
int main()
{
ifstream f("rucsac.in");
ofstream co("rucsac.out");
f>>n>>G;
int i;
for(i=1;i<=n;i++)
{
f>>a[i].g>>a[i].p;
}
back(1,0,0);
co<<pmax;
}