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Cod sursa(job #373952)
#include<cstdio>
#include<string.h>
char s[500000010];
int semn,x,nr,max,p1,p2;
int k,n,st,dr,v[5000010],dq[5000010];
inline void stanga (int i)
{
if(i-dq[st]==k)
++st;
}
void dreapta(int i)
{
while(st<=dr&&v[dq[dr]]>=v[i])
--dr;
dq[++dr]=i;
}
int main()
{
int i;
freopen("secventa.in","r",stdin);
freopen("secventa.out","w",stdout);
scanf("%d%d\n",&n,&k);
gets(s);
nr=0; x=0; semn=1;
for(i=0;s[i]&&s[i]!='\n';++i)
{
if(s[i]==' ')
{
v[++nr]=semn*x;
semn=1;
x=0;
continue;
}
if(s[i]=='-')
{
semn=-1;
continue;
}
x=x*10+s[i]-'0';
}
v[++nr]=x*semn;
st=dr=0;
st=1;
for(i=1;i<=k;i++)
{
//scanf("%d",&v[i]);
dreapta(i);
}
max=v[dq[st]];
p1=1;
p2=k;
for(i=k+1;i<=n;i++)
{
// scanf("%d",&v[i]);
stanga(i);
dreapta(i);
if(v[dq[st]]>max)
{
p2=i;
p1=i-k+1;
max=v[dq[st]];
}
}
printf("%d %d %d",p1,p2,max);
return 0;
}