Cod sursa(job #2112785)

Utilizator Mihai145Oprea Mihai Adrian Mihai145 Data 23 ianuarie 2018 20:49:48
Problema Garaj Scor 20
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.99 kb
#include <bits/stdc++.h>
using namespace std;
ifstream fin("garaj.in");
ofstream fout("garaj.out");
int n, solt, solc;
unsigned long long m;
struct camion{
    int c, t;
}a[100002];
inline bool cmp(const camion x, const camion y)
{
    if(x.t==y.t)
        return x.c>y.c;
    return x.t<y.t;
}
int verif(int val)
{
    int i, ture_complete, ct_cam=0;
    unsigned long long sump=0;
    for(i=1; i<=n; i++)
    {
        ture_complete=val/(2*a[i].t);
        sump+=(unsigned long long)ture_complete*a[i].c;
        if(ture_complete>0) ct_cam++;
        if(sump>=m) return ct_cam;
    }
    return 0;
}
void bs()
{
    int x, st=0, dr=INT_MAX, mijl;
    while(st<=dr)
    {
        mijl=st+(dr-st)/2;
        x=verif(mijl);
        if(x>0) solt=mijl, solc=x, dr=mijl-1;
        else st=mijl+1;
    }
}
int main()
{
    int i;
    fin>>n>>m;
    for(i=1; i<=n; i++) fin>>a[i].c>>a[i].t;
    sort(a+1,a+n+1,cmp);
    bs();
    fout<<solt<<' '<<solc<<'\n';
    return 0;
}