mirror of
https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
84 lines
1.9 KiB
C++
84 lines
1.9 KiB
C++
#include <iostream>
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#include <algorithm>
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using namespace std;
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#define N 50005
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const int MOD = 1000000007;
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#define LL(x) ((x)<<1)
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#define RR(x) ((x)<<1|1)
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struct Seg_Tree
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{
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int left,right,mid;
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__int64 num;
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}bt[3*N];
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__int64 num[N];
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void build(int l,int r,int nid)
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{
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bt[nid].left=l;
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bt[nid].right=r;
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bt[nid].mid=(l+r)>>1;
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if(l!=r)
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{
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build(l,bt[nid].mid,LL(nid));
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build(bt[nid].mid+1,r,RR(nid));
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bt[nid].num=(bt[LL(nid)].num%MOD)*(bt[RR(nid)].num%MOD)%MOD;
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}
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else
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bt[nid].num=num[l];
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}
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void update(int id,int x,int nid)
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{
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if(bt[nid].left==bt[nid].right)
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{
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bt[nid].num=x;
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return ;
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}
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if(id<=bt[nid].mid)
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update(id,x,LL(nid));
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else
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update(id,x,RR(nid));
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bt[nid].num=(bt[2*nid].num*bt[2*nid+1].num)%MOD;
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}
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__int64 query(int l,int r,int nid)
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{
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if(l==bt[nid].left&&r==bt[nid].right)
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return bt[nid].num%MOD;
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if(r<=bt[nid].mid)
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return query(l,r,LL(nid))%MOD;
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else if(l>bt[nid].mid)
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return query(l,r,RR(nid))%MOD;
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else
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return (query(l,bt[nid].mid,LL(nid))%MOD)*(query(bt[nid].mid+1,r,RR(nid))%MOD)%MOD;
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}
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int main()
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{
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int T,i,j;
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scanf("%d",&T);
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while(T--)
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{
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int n;
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scanf("%d",&n);
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for(i = 1 ; i <= n; i ++)
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scanf("%I64d",&num[i]);
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build(1,n,1);
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int cas,oper,a,b;
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scanf("%d",&cas);
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while(cas--)
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{
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scanf("%d",&oper);
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scanf("%d%d",&a,&b);
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switch(oper)
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{
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case 0:
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printf("%I64d\n",query(a,b,1));
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break;
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case 1:
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update(a,b,1);
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break;
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default:
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break;
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}
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}
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}
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return 0;
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}
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