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Cod sursa(job #849387)
#include <cstdio>
#include <queue>
using namespace std;
const int Nmax = 5000001;
int n, k, x, i, j, sign, maxmin=-30001, u, Deque[Nmax];
char s[10000005];
deque < pair <int,int> > D;
int main()
{ freopen("secventa.in", "r", stdin); freopen("secventa.out", "w", stdout);
scanf("%d %d ", &n, &k);
fgets(s,10000005,stdin); // citire parsata a elementelor sirului A
for(i=1; i<=n; ++i)
{ sign=1; x=0;
if(s[j]==' ') j++;
if(s[j]=='-') {sign=-1; j++;}
while('0'<=s[j] && s[j]<='9') {x=x*10+s[j]-'0'; j++;}
x *= sign;
if(D.empty()) D.push_back(make_pair(x,i));
else
{ while(!D.empty() && D.back().first > x) D.pop_back();
D.push_back(make_pair(x,i));
while(D.front().second<=i-k) D.pop_front();
if(i>=k) if(D.front().first > maxmin) {maxmin=D.front().first; u=i;}
}
}
printf("%d %d %d\n", u-k+1, u, maxmin);
return 0;
}