Cod sursa(job #2543762)
Utilizator | Ghita Gabriel Gabi1623 | Data | 11 februarie 2020 15:01:39 |
---|---|---|---|
Problema | Range minimum query | Scor | 0 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.67 kb |
#include <fstream>
using namespace std;
ifstream fin("rmq.in");
ofstream fout("rmq.out");
int n,m,p,k,i,d[20][1000001],l[10000],j,x,y,k2;
int main()
{
fin>>n;
fin>>m;
for(i=1; i<=n; i++)
fin>>d[0][i];
p=2;
k=0;
while(p<=n)
{
k++;
for(i=1; i<=n; i++) {
d[k][i]=d[k-1][i];
if (d[k-1][i+p/2] < d[k][i]&&i+p/2<=n)
d[k][i]=d[k-1][i+p/2];
}
p*=2;
}
for(int i=2;i<=n;i++)
{
l[i]=1+l[i/2];
}
for(i=1;i<=m;i++)
{
fin>>x>>y;
fout<<min(d[l][x],d[k2][y-p+1])<<endl;
}
return 0;
}