Cod sursa(job #2431827)

Utilizator matei123Biciusca Matei matei123 Data 20 iunie 2019 20:43:30
Problema Secventa Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.79 kb
#include <bits/stdc++.h>
using namespace std;
ifstream fin("secventa.in");
ofstream fout("secventa.out");
int dq[500005],v[500005];
char s[3500005];
int main()
{   int n,k,i,maxi=INT_MIN,pi=0;
    fin>>n>>k;
    fin.get();
    fin.getline(s,3500001);
    int l=strlen(s),p=1;
    for(i=0;i<l;i++)
    {   int semn=1;
        if(s[i]=='-') semn=0,i++;
        while('0'<=s[i]&&s[i]<='9')
        {   v[p]=v[p]*10+s[i]-48;
            i++;
        }
        if(semn==0) v[p]=v[p]*(-1);
        p++;
    }
    int st=1,dr=0;
    for(i=1;i<=n;i++)
    {   while(st<=dr&&v[dq[dr]]>=v[i]) dr--;
        dq[++dr]=i;
        if(dq[st]==i-k) st++;
        if(i>=k)
        {   if(v[dq[st]]>maxi) maxi=v[dq[st]],pi=i-k+1; }
    }
    fout<<pi<<" "<<pi+k-1<<" "<<maxi;
    return 0;
}