Cod sursa(job #1289171)

Utilizator iulian_moneIulian Mone iulian_mone Data 9 decembrie 2014 16:45:30
Problema Secventa Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.25 kb
#include<stdio.h>
#include<fstream>
#include<deque>

#define NMAX 500007
#define INF -0x3f3f3f3f
#define MaxChar 10000000
#define verf ( (++CharB==MaxChar) ? ( in.read(Buffer,MaxChar),CharB=0 ) : (1) )

using namespace std;

ifstream in("secventa.in");

deque <int> Deq;
int a[NMAX];
int n, k, Min, Poz, CharB = MaxChar - 1;
char Buffer [ MaxChar ];

void cit ( int &a ){
    bool ok=0;
    for ( ; !( (Buffer[ CharB ]>='0' && Buffer[ CharB ]<='9') || ( Buffer[ CharB ] == '-' ) ); verf );
    if ( Buffer[ CharB ] == '-' ){
        CharB++;
        ok=1;
    }
    for ( a=0; (Buffer[ CharB ]>='0' && Buffer[ CharB ]<='9'); a*=10,a+=( Buffer[ CharB ]-'0'), verf );
    if ( ok ){
        a=-a;
    }
}

int main(){
    freopen("secventa.out", "w", stdout);
    cit(n);
    cit(k);
    for(int i = 1; i <= n; ++i)
        cit(a[i]);
    Min = INF;
    for(int i = 1; i <= n ; ++i){
        while(! Deq.empty() && a[Deq.back()] > a[i])
            Deq.pop_back();
        Deq.push_back(i);
        if(Deq.front() <= i - k)
            Deq.pop_front();
        if(i >= k && a[Deq.front()] > Min){
            Min = a[Deq.front()];
            Poz = i;
        }
    }
    printf("%d %d %d\n", Poz - k + 1, Poz, Min);
    return 0;
}