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Cod sursa(job #49316)
var i,j,n,jmin,smin,rez,k,sa,st:integer;
v,p:array[1..500000]of integer;
min:array[1..500000]of integer;
begin
assign(input,'secventa.in');reset(input);
assign(output,'secventa.out');rewrite(output);
readln(n,k);
for i:=1 to n do
read(v[i]);
smin:=1;
min[1]:=v[1];
jmin:=1;
for i:=2 to k do
begin
if (v[i]>=min[smin])and(smin<k) then
begin
inc(smin);
min[smin]:=v[i];
p[smin]:=i;
end
else
begin
while (min[smin]>v[i])and(smin>0) do
dec(smin);
inc(smin);
min[smin]:=v[i];
p[smin]:=i;
end;
end;
rez:=-maxint;
if min[jmin]>rez then
begin
rez:=min[jmin];
sa:=1;
st:=k;
end;
for i:=k+1 to n do
begin
if (v[i]>=min[smin])and(smin<k) then
begin
inc(smin);
min[smin]:=v[i];
p[smin]:=i;
end
else
begin
while (min[smin]>v[i])and(smin>=jmin) do
dec(smin);
inc(smin);
min[smin]:=v[i];
p[smin]:=i;
end;
if v[i-k]=min[jmin] then
inc(jmin);
if (min[jmin]>rez) then
begin
rez:=min[jmin];
sa:=i-k+1;
st:=i;
end;
end;
writeln(sa,' ',st,' ',rez);
close(input);close(output);
end.