Pagini recente » bicicleta | Cod sursa (job #3345397) | Monitorul de evaluare | Monitorul de evaluare | Cod sursa (job #2977801)
#include <iostream>
#include <fstream>
#include <cmath>
using namespace std;
const int dim=505;
int a[dim],n,q,dp[dim][dim];
void precalc(){
for(int i=0;i<n;i++){
dp[i][0]=i;
}
for(int j=1;(1<<j)<=n;j++){
for(int i=0;i+(1<<j)<=n;i++){
if(a[dp[i][j-1]]<a[dp[i+(1<<(j-1))][j-1]]){
dp[i][j]=dp[i][j-1];
}
else{
dp[i][j]=dp[i+(1<<(j-1))][j-1];
}
}
}
}
int query(int l, int r){
int j=(int)log2(r-l+1);
return min(a[dp[l][j]],a[dp[r-(1<<j)+1][j]]);
}
int main(){
ifstream cin("rmq.in");
ofstream cout("rmq.out");
cin>>n>>q;
for(int i=0;i<n;i++){
cin>>a[i];
}
precalc();
while(q--){
int l,r;
cin>>l>>r;
cout<<query(l-1,r-1)<<endl;
}
return 0;
}