Cod sursa(job #1525257)

Utilizator dnprxDan Pracsiu dnprx Data 14 noiembrie 2015 21:40:27
Problema Buline Scor 20
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.88 kb
#include <bits/stdc++.h>

using namespace std;

int a[400009], n;

int main()
{
    int i, m, n, s, smax, poz, x, st, dr;
    ifstream fin("buline.in");
    fin >> n;
    for (i = 1; i <= n; ++i)
    {
        fin >> x >> s;
        if (s == 0) a[i] = a[n + i] = -x;
        else a[i] = a[n + i] = x;
    }
    fin.close();

    s = smax = a[1];
    st = dr = poz = 1;
    if (s < 0) {s = 0; poz = 2;}
    m = 2 * n;
    for (i = 2; i < m; ++i)
    {
        if (poz <= i - n)
        {
            s -= a[i];
            poz++;
        }
        s += a[i];
        if (s > smax)
        {
            smax = s;
            st = poz; dr = i;
        }
        if (s < 0)
        {
            s = 0; poz = i + 1;
        }
    }
    ofstream fout("buline.out");
    fout << smax << " " << st << " " << (dr - st + 1) << "\n";
    fout.close();
    return 0;
}