Cod sursa(job #2225685)

Utilizator radugheoRadu Mihai Gheorghe radugheo Data 27 iulie 2018 22:53:23
Problema Garaj Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.93 kb
#include <fstream>
#include <algorithm>
#include <limits.h>

using namespace std;

ifstream fin ("garaj.in");
ofstream fout ("garaj.out");

int n, m, i, st, dr, sum, k, tmin, mid;

struct camion{
    int c, t;
}v[100005];

bool cmp (camion a, camion b){
    return a.t > b.t;
}

int main()
{
    fin >> n >> m;
    for (i=1; i<=n; i++){
        fin >> v[i].c >> v[i].t;
        v[i].t *= 2;
    }
    st = 2;
    dr = INT_MAX;
    while (st <= dr){
        sum = 0;
        mid = (st + dr)/2;
        for(i=1; i<=n && sum<m; i++)
            sum = sum + v[i].c*(mid/v[i].t);
        if (sum >= m){
            dr = mid - 1;
        }
        else{
            st = mid + 1;
        }
    }
    for(i=1; i<=n; i++)
        v[i].t = v[i].c*(st/v[i].t);
    sort(v + 1, v + n + 1, cmp);
    sum = 0;
    for(i=1; i<=n && sum<m; i++)
        sum += v[i].t;
    fout << st << " " << i - 1;
    return 0;
}