Cod sursa(job #2749216)

Utilizator NashikAndrei Feodorov Nashik Data 5 mai 2021 21:17:41
Problema Secventa Scor 80
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.16 kb
//#include <iostream>
#include <fstream>
#include <deque>
using namespace std;
ifstream cin("secventa.in");
ofstream cout("secventa.out");
deque <int> dq;
int v[500005];
void scoate(int poz){
    if(dq.empty()==false){
        if(dq.back()==poz){
            dq.pop_back();
        }
    }
}
void baga(int poz){
    if(dq.empty()==true){
        dq.push_front(poz);
        return;
    }
    while(dq.empty()==false){
        if(v[dq.front()]>v[poz]){
            dq.pop_front();
        }
        else
            break;
    }
    dq.push_front(poz);
}
int que(){
    return dq.back();
}
int main()
{
    int n,m,rasp=-31000;
    cin>>n>>m;
    for(int i=1;i<=n;i++){
        cin>>v[i];
    }
    for(int i=1;i<=m;i++){
        baga(i);
        //cout<<1<<" "<<i<<" "<<v[que()]<<"\n";
    }
    int st,dr;
    rasp=v[que()];
    st=1;
    dr=m;
    for(int i=m+1;i<=n;i++){
        scoate(i-m);
        baga(i);
        //cout<<i-m+1<<" "<<i<<" "<<v[que()]<<"\n";
        if(rasp<v[que()]){
            st=i-m+1;
            dr=i;
            rasp=v[que()];
        }
    }
    cout<<st<<" "<<dr<<" "<<rasp;
    return 0;
}