Cod sursa(job #1346276)

Utilizator ZeBuGgErCasapu Andreas ZeBuGgEr Data 18 februarie 2015 09:31:56
Problema Secventa Scor 80
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.15 kb
#include <deque>
#include <stdio.h>

struct str
{
       int val,pos;
} v[500001];

std::deque<str> d;

int main()
{
    FILE *fin,*fout;
    fin=fopen("secventa.in","r");
    fout=fopen("secventa.out","w");
    int n,k,p1;
    short max=-31000;
    fscanf(fin,"%d %d",&n,&k);
    for(int i=1;i<=n;i++)
    {
            fscanf(fin,"%d",&v[i].val);
            v[i].pos=i;
    }
    for(int i=1;i<k;i++)
    {
            while(d.size()&&d.back().val>v[i].val)
            {
                                                  d.pop_back();
            }
            d.push_back(v[i]);
    }
    for(int i=k;i<=n;i++)
    {
            if(d.front().pos<=i-k)
            {
                                  d.pop_front();
            }
            while(d.size()&&d.back().val>v[i].val)
            {
                                                  d.pop_back();
            }
            d.push_back(v[i]);

            if(max<d.front().val)
            {
                                 max=d.front().val;
                                 p1=i;
            }
    }
    fprintf(fout,"%d %d %d\n",p1-k+1,p1,max);
    return 0;
}