Cod sursa(job #1113829)

Utilizator CiurezAndreiCiurez Marius-Andrei CiurezAndrei Data 20 februarie 2014 22:32:22
Problema Garaj Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.92 kb
#include <fstream>
#include <algorithm>
using namespace std;
ifstream f("garaj.in");
ofstream g("garaj.out");
int i,n,m,st,dr,timp,a[100000],nrmin;
struct camion{
    int c,t;
}v[100001];
int verif(int timp){
    int j=m,i;
    for(i=1;i<=n;i++){
        j-=timp/(v[i].t*2)*v[i].c;
        if(j<1)
            return 1;
        }
        return 0;
    }
int cmp (camion x, camion y){
    if(x.t<y.t) return 1;
        return 0;
}
int main()
{
    f>>n>>m;
    for(i=1;i<=n;i++)
        f>>v[i].c>>v[i].t;
    sort(v+1,v+n+1,cmp);
    st=1;
    dr=2*m;
    while(st<=dr){
        timp=(st+dr)/2;
        if(verif(timp))
            dr=timp-1;
        else
            st=timp+1;
    }
    g<<st<<" ";
    for (i=1;i<=n;i++)
        a[i]=st/(v[i].t*2)*v[i].c;
    sort (a+1,a+n+1);
    i=n;
    while (m>=1 && i!=0) {
        nrmin++;
        m-=a[i--];
    }

    g<<nrmin<<"\n";
    return 0;
}