Cod sursa(job #3264058)

Utilizator GabrielPopescu21Silitra Gabriel - Ilie GabrielPopescu21 Data 17 decembrie 2024 22:27:09
Problema Buline Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.06 kb
#include <bits/stdc++.h>
using namespace std;

/**
dp[i] - secventa de suma minima care se termina in i
*/

const int MAX = 6000005;
int a[MAX], dp[MAX];

int main()
{
    ifstream cin("buline.in");
    ofstream cout("buline.out");

    int n, total = 0, minim = INT_MAX, st = 0, ans_left = 0, ans_right = 0;
    cin >> n;

    for (int i = 1; i <= n; ++i)
    {
        int x, c;
        cin >> x >> c;
        a[i] = (c == 0) ? -x : x;
        total += a[i];
    }

    dp[1] = a[1];
    for (int i = 2; i <= n; ++i)
    {
        if (dp[i-1] + a[i] < a[i])
            dp[i] = dp[i-1] + a[i];
        else
        {
            st = i;
            dp[i] = a[i];
        }

        if (minim > dp[i])
        {
            minim = dp[i];
            ans_left = st;
            ans_right = i;
        }
    }

    int max_sum = total - minim;
    int length = (ans_right >= ans_left) ? (ans_right - ans_left + 1) : (n - ans_left + ans_right + 1);

    cout << max_sum << " " << ans_left + 1 << " " << length << "\n";

    return 0;
}