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Cod sursa(job #363794)
#include <stdio.h>
#include <stdlib.h>
#define N 1<<17
#define NR 666013
int n,k,m,v[N],ant[N],aib[N],ord[N],rsp[N];
struct query
{
int a,b;
};
query nr[N];
int lsb(int x)
{
return x & -x;
}
void update(int poz,int val)
{
int i;
if (!poz)
return;
for (i=poz; i<=n; i+=lsb(i))
aib[i]+=val;
}
int sum(int poz)
{
int i,s=0;
for (i=poz; i>=1; i-=lsb(i))
{
s+=aib[i];
if (s>=NR)
s%=NR;
}
return s;
}
int compar(const void *p,const void *q)
{
int x=*(int*)p;
int y=*(int*)q;
if (nr[x].b<nr[y].b)
return -1;
if (nr[x].b>nr[y].b)
return 1;
return 0;
}
int main()
{
freopen("distincte.in","r",stdin);
freopen("distincte.out","w",stdout);
scanf("%d%d%d",&n,&k,&m);
int i,start=0;
for (i=1; i<=n; i++)
scanf("%d",&v[i]);
for (i=1; i<=m; i++)
{
scanf("%d%d",&nr[i].a,&nr[i].b);
ord[i]=i;
}
qsort(ord+1,m,sizeof(ord[0]),compar);
for (i=1; i<=n; i++)
{
update(i,v[i]);
update(ant[v[i]],-v[i]);
while (nr[ord[start+1]].b==i)
{
start++;
rsp[ord[start]]=sum(nr[ord[start]].b)-sum(nr[ord[start]].a-1);
if (rsp[ord[start]]<0)
rsp[ord[start]]+=NR;
}
ant[v[i]]=i;
}
for (i=1; i<=m; i++)
printf("%d\n",rsp[i]);
return 0;
}