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Cod sursa(job #904701)
#include <fstream>
#include <deque>
#include <ctype.h>
#include <string.h>
using namespace std;
ifstream cin("secventa.in");
ofstream cout("secventa.out");
deque <int> dq;
char s[1005];
int nr, u, semn;
int n, k, a[500005], i, maxi=-((1<<31)-1), st, dr;
inline int max(int a, int b)
{
if(a>b) return a;
return b;
}
int main()
{
cin>>n>>k;
cin.getline(s, 100);
cin.getline(s, 1000);
i=0;
for(;u<=n;)
{
nr=0;
semn=1;
if(s[i]=='-')
semn=-1, ++i;
while(isdigit(s[i]))
nr=nr*10+(s[i]-'0'), ++i;
a[++u]=nr*semn;
while(isspace(s[i]))
++i;
}
// for(i=1;i<=u;++i)
// cout<<a[i]<<" ";
for(i=1;i<=n;++i)
{
while(!dq.empty() && a[dq.back()]>=a[i])
dq.pop_back();
dq.push_back(i);
if(i>k && dq.front()==i-k)
dq.pop_front();
if(i>=k)
if(maxi<a[dq.front()])
{
maxi=a[dq.front()];
st=i-k+1;
dr=i;
}
}
while(a[st-1]>=maxi && st>1)
--st;
cin.close();
cout<<st<<" "<<dr<<" "<<maxi<<"\n";
cout.close();
return 0;
}