Submission #36694195

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Source Code Expand

#include <iostream>
#include <vector>
#define int long long
using namespace std;
const int N=2e5+5;
int a[N];
int vis[N];
int s[N];
signed main()
{
	int n;cin>>n;
	for(int i=1;i<=n;i++) cin>>a[i];
	int q;cin>>q;
	int now=0,cnt=0;
	while(q--)
	{
		int u;cin>>u;
		if(u==1)
		{
			int x;cin>>x;
			now=x;
			cnt++;
		}
		else if(u==2)
		{
			int x,y;cin>>x>>y;
			if(vis[x]!=cnt) vis[x]=cnt,s[x]=0;
			s[x]+=y;
		}
		else 
		{
			int x;cin>>x;
			if(vis[x]!=cnt) vis[x]=cnt,s[x]=0;
			if(!cnt) cout<<a[x]+s[x]<<endl;
			else cout<<now+s[x]<<endl;
		}
	}
	return 0;
}

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