mirror of
https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
94 lines
1.8 KiB
C++
94 lines
1.8 KiB
C++
#include<stdio.h>
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#include<string.h>
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#include<algorithm>
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#include<map>
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using namespace std;
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typedef __int64 ll;
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#define N 300010
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#define M 100010
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struct
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{
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int l,r;
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ll num;
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}root[N*4];
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struct Q
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{
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int s,t,ind;
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}q[M];
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bool cmp(Q i,Q j)
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{
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return i.t<j.t;
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}
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inline void build(int t,int x,int y)
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{
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root[t].l=x;
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root[t].r=y;
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root[t].num=0;
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if(x==y) return;
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int m=(x+y)>>1;
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build(t*2,x,m);
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build(t*2+1,m+1,y);
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}
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inline void Modefiy(int t,int x,ll val)
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{
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int l=root[t].l;
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int r=root[t].r;
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if(l==r)
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{
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root[t].num+=val;return;
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}
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int m=(l+r)>>1;
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if(x<=m) Modefiy(t*2,x,val);
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else Modefiy(t*2+1,x,val);
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root[t].num=root[t*2].num+root[t*2+1].num;
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}
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inline ll query(int t,int x,int y)
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{
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int l=root[t].l;
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int r=root[t].r;
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if(l==x&&r==y)
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{
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return root[t].num;
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}
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int m=(l+r)>>1;
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ll ans=0;
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if(x<=m) ans+=query(t*2,x,min(m,y));
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if(y>m) ans+=query(t*2+1,max(m+1,x),y);
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return ans;
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}
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int t,n,qn;
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ll a[N];
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map<ll,int>m;
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ll ans[M];
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int main()
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{
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scanf("%d",&t);
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while(t--)
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{
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m.clear();
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scanf("%d",&n);
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for(int i=1;i<=n;i++) scanf("%I64d",&a[i]);
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build(1,1,n);
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scanf("%d",&qn);
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for(int i=0;i<qn;i++)
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{
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scanf("%d%d",&q[i].s,&q[i].t);
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q[i].ind=i;
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}
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sort(q,q+qn,cmp);
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int k=1;
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for(int i=0;i<qn;i++)
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{
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for(;k<=q[i].t;k++)
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{
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if(m[a[k]]!=0) Modefiy(1,m[a[k]],-a[k]);
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m[a[k]]=k;
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Modefiy(1,k,a[k]);
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}
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ans[q[i].ind]=query(1,q[i].s,q[i].t);
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}
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for(int i=0;i<qn;i++) printf("%I64d\n",ans[i]);
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}
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return 0;
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}
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