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- #include <bits/stdc++.h>
- using namespace std;
- #define ll long long
- #define test int t; cin>>t; for(int cs=1;cs<=t;cs++)
- ll a[100005];
- ll tree[400005];
- void treeconstruct(ll node,ll b,ll e)
- {
- if(b==e)
- {
- tree[node]=a[b];
- return;
- }
- ll left = node*2;
- ll right = node*2 + 1ll;
- ll mid=(b+e)/2;
- treeconstruct(left,b,mid);
- treeconstruct(right,mid+1,e);
- tree[node]=__gcd(tree[left],tree[right]);
- }
- ll queries(ll node,ll b,ll e,ll i,ll j)
- {
- if(i>e || j<b) return 0;
- if(b>=i && e<=j) return tree[node];
- ll left = node*2;
- ll right = node*2 + 1ll;
- ll mid=(b+e)/2;
- ll x=queries(left,b,mid,i,j);
- ll y=queries(right,mid+1,e,i,j);
- return __gcd(x,y);
- }
- void update(ll node,ll b,ll e,ll i,ll newv)
- {
- if(i>e || i<b) return;
- if(b>=i && e<=i)
- {
- tree[node]=newv;
- return;
- }
- ll left = node*2;
- ll right = node*2 + 1ll;
- ll mid=(b+e)/2;
- update(left,b,mid,i,newv);
- update(right,mid+1,e,i,newv);
- tree[node]=__gcd(tree[left],tree[right]);
- }
- int main()
- {
- ios_base::sync_with_stdio(0);
- cin.tie(0);
- cout.tie(0);
- ll n,m,i,j,k,l=1;
- map<ll,set<ll>>x;
- char c;
- cin>>n;
- treeconstruct(1,1,n);
- for(i=1;i<=n;i++)
- {
- cin>>c>>m;
- if(c=='+')
- {
- update(1,1,n,l,m);
- x[m].insert(l);
- l++;
- }
- else
- {
- auto dd=x[m].begin();
- if(dd!=x[m].end())
- {
- update(1,1,n,*dd,0);
- x[m].erase(dd);
- }
- }
- cout<<max(1ll,queries(1,1,n,1,n))<<endl;
- }
- return 0;
- }
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