Cod sursa(job #2225686)

Utilizator radugheoRadu Mihai Gheorghe radugheo Data 27 iulie 2018 23:02:18
Problema Garaj Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.01 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, 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 - st)/2;
        i = 1;
        while(i<=n && sum<m){
            sum += v[i].c*(mid/v[i].t);
            i++;
        }
        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;
    tmin = 1;
    while (tmin <= n && sum < m){
        sum += v[tmin].t;
        tmin++;
    }
    fout << st << " " << tmin - 1;
    return 0;
}