Cod sursa(job #1214141)

Utilizator TibixbAndrei Tiberiu Tibixb Data 29 iulie 2014 18:35:21
Problema Range minimum query Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.56 kb
#include<fstream>
using namespace std;
int n, m, i, j, d[17][100007], v[100007], x, y, p;
int minim(int x, int y){
    return x<y?x:y;
}
ifstream in("rmq.in");
ofstream out("rmq.out");
int main(){
    in>>n>>m;
    for(i=1; i<=n; i++)
        in>>d[0][i];
    for(i=2; i<=n; i++)
        v[i]=v[i>>1];
    for(i=1; (1<<i)<=n; i++)
        for(j=1; j<=m; j++)
            d[i][j]=minim(d[i-1][j], d[i-1][j+(1<<(i-1))]);
    for(i=1; i<=m; i++){
        in>>x>>y;
        p=v[y-x+1];
        out<<minim(d[p][x], d[p][y-(1<<p)+1])<<"\n";
    }
return 0;
}