Cod sursa(job #660370)
#include<stdio.h>
#include<deque>
using namespace std;
int v[500001];
deque<int>c;
#define DIM 8192
char buff[DIM+16];
int pz;
inline void citeste(int &x)
{
x=0;
while((buff[pz]<'0' || buff[pz]>'9') && (buff[pz]!='-'))
if(++pz==DIM)fread(buff, 1, DIM, stdin), pz=0;
int neg=0;
if(buff[pz]=='-')
{
neg=1;
if(++pz==DIM)fread(buff, 1, DIM, stdin),pz=0;
}
while(buff[pz]>='0' && buff[pz]<='9')
{
x=x*10+buff[pz]-'0';
if(++pz==DIM)fread(buff,1, DIM, stdin),pz=0;
}
if(neg) x=-x;
}
int main()
{
int N,K,i,inceput_coada,sfarsit_coada,min_coada,inceput_max,sfarsit_max,x,y;
freopen("secventa.in","r",stdin);
freopen("secventa.out","w",stdout);
scanf("%d%d",&N,&K);
citeste(x);
v[1]=x;
c.push_back(v[1]);
inceput_coada=1;
sfarsit_coada=1;
inceput_max=1;
sfarsit_max=1;
min_coada=-31000;
for(i=2;i<=N;i++)
{
citeste(v[i]);
if(sfarsit_coada-inceput_coada+1<K)
{
while(c.size()&&v[i]<c.back())
c.pop_back();
c.push_back(v[i]);
sfarsit_coada++;
}
else
if(sfarsit_coada-inceput_coada+1>=K)
{
x=c.front();
if(min_coada<x)
{
min_coada=c.front();
inceput_max=inceput_coada;
sfarsit_max=sfarsit_coada;
}
if(v[i]>=x)
{
while(c.size()&&v[i]<c.back())
c.pop_back();
if(c.size()&&c.front()==v[inceput_coada])
c.pop_front();
inceput_coada++;
c.push_back(v[i]);
sfarsit_coada++;
}
else
{
while(c.size())
c.pop_back();
c.push_back(v[i]);
inceput_coada=i;
sfarsit_coada=i;
}
}
}
if(sfarsit_coada-inceput_coada+1>=K)
if(min_coada<c.front())
{
min_coada=c.front();
inceput_max=inceput_coada;
sfarsit_max=sfarsit_coada;
}
printf("%d %d %d",inceput_max,sfarsit_max,min_coada);
return 0;
}