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Submission #498994

# Submission time Handle Problem Language Result Execution time Memory
498994 2021-12-27T00:22:31 Z inksamurai Klasika (COCI20_klasika) C++17
33 / 110
 5000 ms 34924 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) a.begin(),a.end()
#define rep(i,n) for(int i=0;i<n;i++)
#define crep(i,x,n) for(int i=x;i<n;i++)
#define drep(i,n) for(int i=n-1;i>=0;i--)
#define vec(...) vector<__VA_ARGS__>
#define _3qplfh5 ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0)
using namespace std;
typedef long long ll;
typedef long double ld;
using tupiii=tuple<int,int,int>;
using pii=pair<int,int>;
using vi=vector<int>;
using vll=vector<long long>;

std::map<int,set<int>> rbts[35];

int main(){
_3qplfh5;
	int q;
	cin>>q;
	vec(tupiii) qry;
	int n=1;
	rep(_,q){
		string s;
		cin>>s;
		int t=0;
		if(s=="Add"){
			t=1;
			n++;
		}
		int _a,_b;
		cin>>_a>>_b;
		qry.pb({t,_a,_b});
	}
	vec(vec(pii)) adj(n);
	int now=1;
	for(auto [t,_a,_b] : qry){
		if(t==1){
			adj[_a-1].pb({now,_b});
			adj[now].pb({_a-1,_b});
			now++;
		}
	}
	//rabbit tour
	vi tour;
	vi tin(n,0),tout(n,0);
	vi psum(n,0);
	int tm=0;
	auto dfs=[&](auto self,int v,int par)->void{
		tin[v]=tm++;
		tour.pb(v);
		for(auto edge : adj[v]){
			int u=edge.fi;
			if(u!=par){
				psum[u]=psum[v]^edge.se;
				// cout<<edge.se<<"\n";
				self(self,u,v);
			}
		}
		tout[v]=tm++;
		tour.pb(v);
	};
	dfs(dfs,0,-1);
	rep(j,31){
		rbts[j][0].insert(tin[0]);
	}
	now=1;
	for(auto [t,_a,_b] : qry){
		if(t==0){
			_a--,_b--;
			int k=psum[_a];
			int need=0;
			int ans=0;
			drep(j,31){
				if(!(k&(1<<j))){
					need|=(1<<j);
				}
				bool pokita=0;
				if(rbts[j].find(need)!=rbts[j].end()){
					auto it=lower_bound(all(rbts[j][need]),tin[_b]);
					if(it!=rbts[j][need].end() and *it<tout[_b]){
						pokita=1;
					}
				}
				if(not pokita){
					if(!(k&(1<<j))) need^=(1<<j);
					else need|=(1<<j);
				}
			}
			ans=need^k;
			cout<<ans<<"\n";
		}else{
			int v=now;
			int wata=0;
			drep(j,31){
				if(psum[v]&(1<<j)) wata|=(1<<j);
				rbts[j][wata].insert(tin[v]);
			}
			now++;
		}
	}
//	
	return 0;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 1 ms 588 KB Output is correct
3 Correct 1 ms 716 KB Output is correct
4 Correct 1 ms 844 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 588 KB Output is correct
7 Correct 1 ms 716 KB Output is correct
8 Correct 2 ms 844 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 588 KB Output is correct
11 Correct 2 ms 716 KB Output is correct
12 Correct 1 ms 844 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 1 ms 588 KB Output is correct
3 Correct 1 ms 716 KB Output is correct
4 Correct 1 ms 844 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 588 KB Output is correct
7 Correct 1 ms 716 KB Output is correct
8 Correct 2 ms 844 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 588 KB Output is correct
11 Correct 2 ms 716 KB Output is correct
12 Correct 1 ms 844 KB Output is correct
13 Correct 12 ms 1792 KB Output is correct
14 Correct 17 ms 3276 KB Output is correct
15 Correct 21 ms 4604 KB Output is correct
16 Correct 23 ms 5900 KB Output is correct
17 Correct 14 ms 1772 KB Output is correct
18 Correct 20 ms 3108 KB Output is correct
19 Correct 22 ms 4596 KB Output is correct
20 Correct 27 ms 5800 KB Output is correct
21 Correct 13 ms 1740 KB Output is correct
22 Correct 20 ms 3180 KB Output is correct
23 Correct 24 ms 4500 KB Output is correct
24 Correct 24 ms 5836 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5064 ms 34924 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 1 ms 588 KB Output is correct
3 Correct 1 ms 716 KB Output is correct
4 Correct 1 ms 844 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 588 KB Output is correct
7 Correct 1 ms 716 KB Output is correct
8 Correct 2 ms 844 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 588 KB Output is correct
11 Correct 2 ms 716 KB Output is correct
12 Correct 1 ms 844 KB Output is correct
13 Correct 12 ms 1792 KB Output is correct
14 Correct 17 ms 3276 KB Output is correct
15 Correct 21 ms 4604 KB Output is correct
16 Correct 23 ms 5900 KB Output is correct
17 Correct 14 ms 1772 KB Output is correct
18 Correct 20 ms 3108 KB Output is correct
19 Correct 22 ms 4596 KB Output is correct
20 Correct 27 ms 5800 KB Output is correct
21 Correct 13 ms 1740 KB Output is correct
22 Correct 20 ms 3180 KB Output is correct
23 Correct 24 ms 4500 KB Output is correct
24 Correct 24 ms 5836 KB Output is correct
25 Execution timed out 5064 ms 34924 KB Time limit exceeded
26 Halted 0 ms 0 KB -