Cod sursa(job #2036353)

Utilizator hackerul555Tapucovidiu hackerul555 Data 10 octombrie 2017 16:55:23
Problema Secventa Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.93 kb
#include <fstream>
#define maxn 500001
using namespace std;
ifstream f("secventa.in");
ofstream g("secventa.out");
int n, k;
int A[maxn], Deque[maxn],mini=0,lu;
char s[maxn*7];
int main()
{   f>>n>>k;
    f.get();
    f.getline(s, sizeof(s));
    int i=0;
    for(int l=1; l<=n; l++)
    {   int semn=1;
        while(s[i]!=' ' && s[i])
        {
            if(s[i]=='-')
            {
                semn=-1;
                i++;
            }
            A[l]=A[l]*10+s[i]-'0';
            i++;
        }
        i++;
        A[l]*=semn;
    }
    int Front = 1, Back = 0;
    A[0]=-300001;
    for (int i = 1; i <= n; i++)
    {
        while (Front <= Back && A[i] <= A[ Deque[Back] ]) Back--;
        Deque[++Back] = i;
        if (Deque[Front] == i-k) Front++;
        if (i >= k) if(A[ Deque[Front]]>A[mini]) {mini=Deque[Front]; lu=i;}
    }
    g<<lu-k+1<<' '<<lu<<' '<<A[mini];
    g.close(); return 0;
}