Cod sursa(job #273474)
#include<stdio.h>
#include<iostream.h>
#define NMAX 5000000
int n,k,i; long long suma;
int v[NMAX+5],deque[NMAX+5];
int main()
{
freopen("deque.in","r",stdin);
freopen("deque.out","w",stdout);
scanf("%d %d",&n,&k);
for(i=1; i<=n; i++) scanf("%d",v+i);
int st=1,dr=0;
for(i=1; i<=n; i++)
{
if(st<=dr && i-deque[st] > k-1) st++;
while(st<=dr && v[i] <= v[ deque[dr] ]) dr--;
deque[++dr]=i; cout<<v[deque[dr]]<<" ";
if(i>=k) suma+=v[ deque[st] ];
}
printf("%lld\n",suma);
return 0;
}