Cod sursa(job #2396034)

Utilizator DanutAldeaDanut Aldea DanutAldea Data 3 aprilie 2019 10:17:42
Problema Secventa Scor 60
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.73 kb
#include <fstream>
using namespace std;

ifstream fin("secventa.in");
ofstream fout("secventa.out");

int n,k,i,p,u,d[500010],v[500010],m,st,dr;

int main(){
    fin>>n>>k;
    m=-300010;
    for(i=1;i<=n;i++)
        fin>>v[i];

    p=1;u=1;
    d[1]=1;
    for(i=2;i<=k;i++){
        while(v[i]<v[d[u]] && u>=p){
            u--;
        }
        d[++u]=i;
    }

    for(;i<=n;i++){
        while(v[i]<v[d[u]] && u>=p){
            u--;
        }
        d[++u]=i;
        if(i-d[p]==k)
            p++;
        if(i>=k){
            if(v[d[p]]>m){
                st=i-k+1;
                dr=i;
                m=v[d[p]];
            }
        }
    }

    fout<<st<<" "<<dr<<" "<<m;

    return 0;
}