Pagini recente » Cod sursa (job #382004) | Cod sursa (job #754327) | Cod sursa (job #42949) | Cod sursa (job #2864845) | Cod sursa (job #283978)
Cod sursa(job #283978)
#include<stdio.h>
#include<string.h>
#define min(a,b) ((a)<(b)?(a):(b))
#define po(a) (1<<(a))
long int v[100003][20],lg[100005],x,y,i,j,k,l,m,n,ln;
int main(){
freopen("rmq.in","r",stdin);
freopen("rmq.out","w",stdout);
scanf("%ld %ld",&n,&m);
memset(v,99,sizeof(v));
for(i=1;i<=n;i++)
scanf("%ld",&v[i][0]);
for(j=1;po(j)<=n;j++)
for(i=1;i<=n-po(j)+1;i++)
v[i][j]=min(v[i][j-1],v[i+po(j-1)][j-1]);
for(i=2;i<=n;i++)
lg[i]=lg[i/2]+1;
for(i=1;i<=m;i++)
{scanf("%ld %ld",&x,&y);
k=y-x+1;
l=lg[k];
printf("%ld\n",min(v[x][l],v[y-po(l)+1][l]));
}
return 0;}