Cod sursa(job #2889700)
Utilizator | Data | 13 aprilie 2022 02:48:41 | |
---|---|---|---|
Problema | Deque | Scor | 100 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.56 kb |
#include <iostream>
#include <fstream>
#define maxn 5000040
using namespace std;
ifstream fin("deque.in");
ofstream fout("deque.out");
int n,k;
int v[maxn], deq[maxn], st, dr;
long long s;
int main()
{
int i;
fin>>n>>k;
for(i=1;i<=n;i++)
fin>>v[i];
st=1;
dr=0;
for(i=1;i<=n;i++)
{
while(st<=dr && v[i]<=v[deq[dr]])
dr--;
dr++;
deq[dr]=i;
if(deq[st]==i-k)
st++;
if(i>=k)
s=s+v[deq[st]];
}
fout<<s;
fin.close();
fout.close();
return 0;
}