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Cod sursa(job #28549)
#include<stdio.h>
FILE* f= fopen("secventa.in", "rt");
FILE* g = fopen("secventa.out", "wt");
int deque[500010],primul=1,ultimul,N,K,maxim,PozInit,PozFin,poz[500010],cnt1,cnt2;
char a[10],b[500010];
int main()
{fgets(a,10,f);
for(;a[cnt1]<='9' && a[cnt1]>='0';cnt1++)
N=N*10+a[cnt1]-'0';
cnt1++;
for(;a[cnt1]<='9' && a[cnt1]>='0';cnt1++)
K=K*10+a[cnt1]-'0';
fgets(b,500010,f);
for(int i=1;i<=K;i++)
{int aux=0,gasit=0;
if(b[cnt2]=='-')
{gasit=1;cnt2++;}
for(;b[cnt2]<='9' && b[cnt2]>='0';cnt2++)
aux=aux*10+b[cnt2]-'0';
if(gasit)
aux*=-1;
while(aux<deque[ultimul] && ultimul > 0)
ultimul--;
deque[++ultimul] = aux;
poz[ultimul] = i;
cnt2++;
}
maxim=deque[primul];
PozInit=poz[primul];PozFin=poz[ultimul];
for(int i=K+1;i<=N;i++)
{
int aux=0,gasit=0;
if(b[cnt2]=='-')
{gasit=1;cnt2++;}
for(;b[cnt2]<='9' && b[cnt2]>='0';cnt2++)
aux=aux*10+b[cnt2]-'0';
if(gasit)
aux*=-1;
if(poz[primul]<i-K+1)
primul++;
while(aux<deque[ultimul] && ultimul >= primul)
ultimul--;
deque[++ultimul] = aux;
poz[ultimul] = i;
cnt2++;
if(maxim<deque[primul])
{maxim=deque[primul];
PozFin=i;
}
}
fprintf(g,"%d %d %d",PozFin-K+1,PozFin, maxim);
fclose(f);
fclose(g);
return 0;
}