Cod sursa(job #3145480)

Utilizator Mihai_OctMihai Octavian Mihai_Oct Data 15 august 2023 21:26:32
Problema Buline Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.8 kb
#include <bits/stdc++.h>

using namespace std;

ifstream fin("buline.in");
ofstream fout("buline.out");
int n, a, b, v[400002], s, p, l, i;
deque<int> q;

int main() {
    fin >> n;
    for(i = 1; i <= n; i++) {
        fin >> a >> b;
        if(b == 0) b = -1;
        v[i] = a * b;
    }
    for(i = n + 1; i < 2 * n; i++) v[i]  = v[i - n];
    for(i =     1; i < 2 * n; i++) v[i] += v[i - 1];

    for(int i = 1; i < 2 * n; i++){
        while(!q.empty() && q.front() <= i - n) q.pop_front();
        while(!q.empty() && v[q.back()] > v[i]) q.pop_back();
        q.push_back(i);
        if(v[i] - v[q.front()] > s){
            s = v[i] - v[q.front()];
            p = q.front() + 1;
            l = i - q.front();
        }
    }
    fout << s << " " << p << " " << l;

    return 0;
}