Pagini recente » Cod sursa (job #631242) | Cod sursa (job #2920750) | Cod sursa (job #613327) | Cod sursa (job #1949975) | Cod sursa (job #2499914)
#include<fstream>
using namespace std;
ifstream fin("rmq.in");
ofstream fout("rmq.out");
long long n,m,log,x,y;
long long a[20][100001],puteri[1000001];
int main(){
fin>>n>>m;
for(int i=1;i<=n;i++)
fin>>a[0][i];
for(int i=1;(1<<i)<=n;i++){
for(int j=1;j<=n;j++){
a[i][j]=a[i-1][j];
if(j + (1<<(i-1))<=n){
if(a[i-1][j+( 1<<(i-1) )]< a[i][j])
a[i][j]=a[i-1][j+( 1<<(i-1) )];
}
}
}
for(int i=2;i<=n;i++){
puteri[i]=1+puteri[i/2];
}
for(int i=1;i<=m;i++){
fin>>x>>y;
log=puteri[y-x+1];
if(a[log][x]<a[log][y-( 1<<log )+1]){
fout<<a[log][x]<<"\n";
}
else{
fout<<a[log][y-( 1<<log )+1]<<"\n";
}
}
return 0;
}