Cod sursa(job #2711688)

Utilizator PredescuSebastianIonPredescu Sebastian Ion PredescuSebastianIon Data 24 februarie 2021 16:42:46
Problema Garaj Scor 50
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.78 kb
#include <fstream>
#include <algorithm>

using namespace std;
ifstream f("garaj.in");
ofstream g("garaj.out");
int n,m,a[1005],v[1005];
int main()
{
    f>>n>>m;
    int st=1,dr=0;
    for(int i=1;i<=n;i++)
    {
        f>>a[i]>>v[i];
        v[i]*=2;
        dr=max(dr,m/a[i]*v[i]);
    }
    int sum=0;
    while(st<=dr)
    {
        int mij=(st+dr)>>1;
        sum=0;
        for(int i=1;i<=n && sum<m;i++)
        {
            sum+=(mij/v[i])*a[i];
        }
        if(sum>=m)dr=mij-1;
        else st=mij+1;
    }
    for(int i=1;i<=n;i++)
    {
        v[i]=(st/v[i])*a[i];
    }
    sort(v+1,v+n+1);
    int sol=0;
    sum=0;
    for(sol=0;sol<n && sum<m;sol++)
    {
        sum+=v[n-sol];
    }
    g<<st<<" "<<sol<<'\n';
    return 0;
}