Cod sursa(job #1468665)

Utilizator batistaUPB-Oprea-Cosmin-Dumitru batista Data 6 august 2015 17:22:55
Problema Secventa Scor 80
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.93 kb
/*http://www.infoarena.ro/problema/secventa*/
#include <cstdio>
#include <cstring>
#include <cstdlib>
#define N 500000
using namespace std;

int Q[N];
int v[N];
char s[6000003];
int main()
{
    int n, k, d, i, rez=-30000, p=0, u=-1;
    char *ptr;
    freopen("secventa.in", "r", stdin);
    freopen("secventa.out", "w", stdout);
    scanf("%d %d\n", &n, &k);
    fgets(s, 6000003, stdin);
    ptr = strtok(s, " ");
    for(i=0; i<n; ++i)
    {
        v[i] = atoi(ptr);
        ptr = strtok(NULL, " ");
    }
    k--;
    for(i=0; i<n; ++i)
    {
        while(p<=u && v[Q[u]] >= v[i]) --u;
        Q[++u] = i;
        if(i>=k && v[Q[p]] > rez)
        {
            rez = v[Q[p]];
            d = i;
        }
/*
        printf("\n");
        for(int j=0; j<Q.size(); ++j)
            printf("%d ", v[Q[j]]);*/
        if(i - Q[p] >= k) ++p;
    }
    printf("%d %d %d\n", d-k+1, d+1, rez);

    return 0;
}