Cod sursa(job #2391135)

Utilizator petrisorvmyVamanu Petru Gabriel petrisorvmy Data 28 martie 2019 18:04:29
Problema Secventa Scor 100
Compilator cpp-64 Status done
Runda excelenta-tema3 Marime 1.42 kb
#include <fstream>
#include <deque>
#include <cstring>
#define N 500010
#define intt int
using namespace std;
ifstream f("secventa.in");
ofstream g("secventa.out");
intt v[N],  cnt, nr, sol= -30001, solstart, solfinish;
int dif = 30001;
char s[50000005];
int n, k;
deque <int> Q;

int main()
{
    f >> n >> k;
    f.get();
    f.getline(s,50000001);
    int str = strlen(s);
    for (int i = 0 ; i < str ; ++ i )
    {
        cnt ++;
        nr = 0 ;
        while ( s [ i ] != ' ' && i < str )   {

            if ( s [ i ] == '-' )
             {
                nr = - ( s [ i + 1 ] - '0' ) ;
                i +=2 ;
             }
             else
               {
                   if ( nr >= 0 )
                    nr = nr * 10 + ( s [ i ] - '0' ) , i ++ ;
                    else
                    nr = nr * 10 - ( s [ i ] - '0' ) , i ++ ;
               }
        }
        v [ cnt ] = nr ;
    }
    for(intt i = 1; i <= n ; ++i )
    {
        while(!Q.empty() && v[i] <= v[Q.back()] ) Q.pop_back();
        Q.push_back(i);
        if(Q.front() == i-k) Q.pop_front();
        if(i >= k)
        {
            if(sol < v[Q.front()])
            {
                sol = v[Q.front()];
                solfinish = i;
                solstart = i - k + 1;
            }
        }
    }
    g << solstart << ' ' << solfinish << ' ' << sol;
    f.close(); g.close();
    return 0;
}