#include <bits/stdc++.h>
#define int long long
using namespace std;
#define tol(bi) (1LL<<((int)(bi)))
int LOG = 23;
struct Trie{
struct Node{
set<int> st;
Node *lnode, *rnode;
inline bool check(int l, int r){
return (st.lower_bound(l)!=st.end() && *st.lower_bound(l)<=r);
}
inline void crl(){
if (lnode==nullptr) lnode=new Node;
}
inline void crr(){
if (rnode==nullptr) rnode=new Node;
}
inline void insert(int x){
st.insert(x);
}
Node():lnode(nullptr), rnode(nullptr){}
};
Node* root;
Trie():root(new Node){}
void insert(int x, int t){
//cout<<"Inserted: "<<x<<", "<<t<<endl;
Node* node=root;
for (int i = LOG; i >= 0; i--){
if (x&tol(i)){
node->crr();
node=node->rnode;
}
else {
node->crl();
node=node->lnode;
}
node->insert(t);
}
}
int query(int x, int l, int r){
//cout<<"Queried: "<<x<<", "<<l<<", "<<r<<endl;
Node* node = root;
int ans = 0;
for (int i = LOG; i >= 0; i--){
bool bb;
if (x&tol(i)){
bb=true;
if (node->lnode==nullptr || !node->lnode->check(l,r)){
bb = false;
}
else ans+=tol(i);
}
else {
bb=false;
if (node->rnode==nullptr || !node->rnode->check(l,r)){
bb=true;
}
else ans+=tol(i);
}
if (bb){
node=node->lnode;
}
else {
node=node->rnode;
}
}
return ans;
}
};
int32_t main(){
int q;cin>>q;
vector<array<int,3>> qu;
vector<vector<int>> arr;
arr.push_back(vector<int>());
vector<int> vals(1,0);
for (int i = 0; i < q; ++i)
{
string str;cin>>str;
int x, y;cin>>x>>y;x--,y--;
qu.push_back({str=="Add", x, y});
if (str=="Add") {
vals.push_back(vals[x]^(y+1));
arr[x].push_back(arr.size());
arr.push_back(vector<int>());
}
}
int n = arr.size();
vector<int> l(n), r(n);
int time=0;
auto dfs = [&](int node, auto dfs)->void{
time++;
l[node]=time;
time++;
for (int i = 0; i < arr[node].size(); i++){
time++;
dfs(arr[node][i], dfs);
time++;
}
time++;
r[node]=time;
time++;
};
dfs(0,dfs);
for (auto &it : l) cout<<it<<" ";cout<<endl;
for (auto &it : r) cout<<it<<" ";cout<<endl;
Trie trie;
trie.insert(vals[0],l[0]);
int hehe = 1;
for (int i = 0; i < q; i++){
if (qu[i][0]){
trie.insert(vals[hehe], l[hehe]);
hehe++;
}
else {
cout<<trie.query(vals[qu[i][1]], l[qu[i][2]], r[qu[i][2]])<<endl;
}
}
}
Compilation message
klasika.cpp: In function 'int32_t main()':
klasika.cpp:105:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
105 | for (auto &it : l) cout<<it<<" ";cout<<endl;
| ^~~
klasika.cpp:105:35: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
105 | for (auto &it : l) cout<<it<<" ";cout<<endl;
| ^~~~
klasika.cpp:106:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
106 | for (auto &it : r) cout<<it<<" ";cout<<endl;
| ^~~
klasika.cpp:106:35: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
106 | for (auto &it : r) cout<<it<<" ";cout<<endl;
| ^~~~
klasika.cpp: In instantiation of 'main()::<lambda(long long int, auto:23)> [with auto:23 = main()::<lambda(long long int, auto:23)>]':
klasika.cpp:104:11: required from here
klasika.cpp:95:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
95 | for (int i = 0; i < arr[node].size(); i++){
| ~~^~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
715 ms |
87384 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
