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Cod sursa(job #781136)
#include <fstream>
#include <algorithm>
using namespace std;
ifstream f("secventa.in");
ofstream g("secventa.out");
int n, k, i, a[500010], mini[500010], x=1, y=0, minim=-30001, poz, l;
int main()
{
f>>n>>k;
for(i=1; i<=n; i++)
f>>a[i];
for(i=1; i<=n; i++)
{
while(x<=y && a[i]<=a[mini[y]])
y--;
mini[++y]=i;
if(i>=k)
if(minim<a[mini[x]])
{
minim=a[mini[x]];
poz=mini[x];
}
if(mini[x]==i-k+1)
x++;
}
l=poz;
while(a[l-1]>=minim && l>1)
l--;
g<<l<<' '<<max(l+k-1,poz)<<' '<<minim;
return 0;
}