Cod sursa(job #845830)

Utilizator mirceadinoMircea Popoveniuc mirceadino Data 31 decembrie 2012 16:47:38
Problema Secventa Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.91 kb
#include<cstdio>
#include<utility>
#include<deque>
#include<fstream>
using namespace std;
deque< pair<int,int> > a;
int i,j,n,x,k,imax,jmax,bazmax=-30001,sign;
char s[10000005];
int main()
{
    freopen("secventa.in","r",stdin);
    freopen("secventa.out","w",stdout);
    scanf("%d%d\n",&n,&k);
    fgets(s,10000005,stdin); j=0;
    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=x*sign;
        if(a.empty()) {a.push_back(make_pair(x,i)); continue;}
        while((!a.empty())&&(a.back().first>x)) a.pop_back();
        a.push_back(make_pair(x,i));
        while(a.front().second<i-k+1) a.pop_front();
        if(i>=k) if(a.front().first>bazmax) {bazmax=a.front().first; jmax=i;}
    }
    imax=jmax-k+1;
    printf("%d %d %d",imax,jmax,bazmax);
    return 0;
}