#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pll pair<long long, long long>
#define pb push_back
#define F first
#define S second
#define all(x) (x).begin(), (x).end()
const ll N = 3e6 + 100;
const ll inf = 1e18;
const ll mod = 1e9 + 7;
const ll block = 450;
ll n = 1, q, timer = 0;
vector<pll>adj[N];
struct query{ll typ,x,y;} t[N];
ll tin[N], tout[N], dep[N];
void dfs(ll u, ll par){
tin[u] = ++timer;
for(auto v : adj[u]){
if(v.F == par) continue;
dep[v.F] = dep[u] ^ v.S;
dfs(v.F, u);
}
tout[u] = timer;
}
struct Trie{
struct ccjv{
ll c[2]; set<ll>s;
} t[N];
ll cur = 3e6;
void init(){
for(int i = 0; i <= cur;i++) t[i].c[0] = t[i].c[1] = -1, t[i].s.clear();
cur = 0;
}
void add(ll x, ll val){
ll pos = 0;
for(int i = 30; i >= 0;i--){
ll f = (x >> i) & 1;
if(t[pos].c[f] == -1) t[pos].c[f] = ++cur;
pos = t[pos].c[f];
t[pos].s.insert(val);
}
}
bool ok(ll pos, ll l, ll r){
auto it = t[pos].s.lower_bound(l);
if(it == t[pos].s.end() || (*it > r)) return 0;
return 1;
}
ll query(ll x, ll l, ll r){
ll pos = 0, res = 0;
for(int i = 30; i >= 0;i--){
ll f = (x >> i) & 1;
if(t[pos].c[f ^ 1] != -1 && ok(t[pos].c[f ^ 1], l, r)){
res |= (1 << i);
pos = t[pos].c[f ^ 1];
}
else if(t[pos].c[f] != -1 && ok(t[pos].c[f], l, r)) pos = t[pos].c[f];
}
return res;
}
} chinsu;
void to_thic_cau(){
cin >> q;
for(int i = 1; i <= q;i++){
string s; ll x,y; cin >> s >> x >> y;
if(s == "Add") adj[x].pb({++n, y}), t[i] = {1, n, x};
else t[i] = {2, x, y};
}
dfs(1, 0);
chinsu.init();
chinsu.add(0, 1);
for(int i = 1; i <= q;i++){
if(t[i].typ == 1) {
chinsu.add(dep[t[i].x], tin[t[i].x]);
}
else{
cout << chinsu.query(dep[t[i].x], tin[t[i].y], tout[t[i].y]) << '\n';
}
}
}
signed main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
ll tc = 1;
//cin >> tc;
while(tc--) to_thic_cau();
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
55 ms |
266236 KB |
Output is correct |
2 |
Correct |
58 ms |
266312 KB |
Output is correct |
3 |
Correct |
54 ms |
266312 KB |
Output is correct |
4 |
Correct |
56 ms |
266528 KB |
Output is correct |
5 |
Correct |
61 ms |
264264 KB |
Output is correct |
6 |
Correct |
53 ms |
259092 KB |
Output is correct |
7 |
Correct |
54 ms |
262280 KB |
Output is correct |
8 |
Correct |
54 ms |
259344 KB |
Output is correct |
9 |
Correct |
56 ms |
260180 KB |
Output is correct |
10 |
Correct |
64 ms |
259144 KB |
Output is correct |
11 |
Correct |
71 ms |
265292 KB |
Output is correct |
12 |
Correct |
68 ms |
259144 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
55 ms |
266236 KB |
Output is correct |
2 |
Correct |
58 ms |
266312 KB |
Output is correct |
3 |
Correct |
54 ms |
266312 KB |
Output is correct |
4 |
Correct |
56 ms |
266528 KB |
Output is correct |
5 |
Correct |
61 ms |
264264 KB |
Output is correct |
6 |
Correct |
53 ms |
259092 KB |
Output is correct |
7 |
Correct |
54 ms |
262280 KB |
Output is correct |
8 |
Correct |
54 ms |
259344 KB |
Output is correct |
9 |
Correct |
56 ms |
260180 KB |
Output is correct |
10 |
Correct |
64 ms |
259144 KB |
Output is correct |
11 |
Correct |
71 ms |
265292 KB |
Output is correct |
12 |
Correct |
68 ms |
259144 KB |
Output is correct |
13 |
Correct |
75 ms |
259792 KB |
Output is correct |
14 |
Correct |
77 ms |
260256 KB |
Output is correct |
15 |
Correct |
84 ms |
260880 KB |
Output is correct |
16 |
Correct |
83 ms |
261604 KB |
Output is correct |
17 |
Correct |
79 ms |
259532 KB |
Output is correct |
18 |
Correct |
87 ms |
260200 KB |
Output is correct |
19 |
Correct |
83 ms |
260932 KB |
Output is correct |
20 |
Correct |
86 ms |
261448 KB |
Output is correct |
21 |
Correct |
82 ms |
266832 KB |
Output is correct |
22 |
Correct |
57 ms |
267344 KB |
Output is correct |
23 |
Correct |
59 ms |
263828 KB |
Output is correct |
24 |
Correct |
57 ms |
261544 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
581 ms |
329288 KB |
Output is correct |
2 |
Correct |
924 ms |
389624 KB |
Output is correct |
3 |
Correct |
1365 ms |
452588 KB |
Output is correct |
4 |
Correct |
1710 ms |
512956 KB |
Output is correct |
5 |
Correct |
536 ms |
326216 KB |
Output is correct |
6 |
Correct |
1006 ms |
385680 KB |
Output is correct |
7 |
Correct |
1587 ms |
446824 KB |
Output is correct |
8 |
Correct |
2020 ms |
504840 KB |
Output is correct |
9 |
Correct |
497 ms |
325432 KB |
Output is correct |
10 |
Correct |
872 ms |
386968 KB |
Output is correct |
11 |
Correct |
1250 ms |
446824 KB |
Output is correct |
12 |
Correct |
1604 ms |
506600 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
55 ms |
266236 KB |
Output is correct |
2 |
Correct |
58 ms |
266312 KB |
Output is correct |
3 |
Correct |
54 ms |
266312 KB |
Output is correct |
4 |
Correct |
56 ms |
266528 KB |
Output is correct |
5 |
Correct |
61 ms |
264264 KB |
Output is correct |
6 |
Correct |
53 ms |
259092 KB |
Output is correct |
7 |
Correct |
54 ms |
262280 KB |
Output is correct |
8 |
Correct |
54 ms |
259344 KB |
Output is correct |
9 |
Correct |
56 ms |
260180 KB |
Output is correct |
10 |
Correct |
64 ms |
259144 KB |
Output is correct |
11 |
Correct |
71 ms |
265292 KB |
Output is correct |
12 |
Correct |
68 ms |
259144 KB |
Output is correct |
13 |
Correct |
75 ms |
259792 KB |
Output is correct |
14 |
Correct |
77 ms |
260256 KB |
Output is correct |
15 |
Correct |
84 ms |
260880 KB |
Output is correct |
16 |
Correct |
83 ms |
261604 KB |
Output is correct |
17 |
Correct |
79 ms |
259532 KB |
Output is correct |
18 |
Correct |
87 ms |
260200 KB |
Output is correct |
19 |
Correct |
83 ms |
260932 KB |
Output is correct |
20 |
Correct |
86 ms |
261448 KB |
Output is correct |
21 |
Correct |
82 ms |
266832 KB |
Output is correct |
22 |
Correct |
57 ms |
267344 KB |
Output is correct |
23 |
Correct |
59 ms |
263828 KB |
Output is correct |
24 |
Correct |
57 ms |
261544 KB |
Output is correct |
25 |
Correct |
581 ms |
329288 KB |
Output is correct |
26 |
Correct |
924 ms |
389624 KB |
Output is correct |
27 |
Correct |
1365 ms |
452588 KB |
Output is correct |
28 |
Correct |
1710 ms |
512956 KB |
Output is correct |
29 |
Correct |
536 ms |
326216 KB |
Output is correct |
30 |
Correct |
1006 ms |
385680 KB |
Output is correct |
31 |
Correct |
1587 ms |
446824 KB |
Output is correct |
32 |
Correct |
2020 ms |
504840 KB |
Output is correct |
33 |
Correct |
497 ms |
325432 KB |
Output is correct |
34 |
Correct |
872 ms |
386968 KB |
Output is correct |
35 |
Correct |
1250 ms |
446824 KB |
Output is correct |
36 |
Correct |
1604 ms |
506600 KB |
Output is correct |
37 |
Correct |
1002 ms |
337480 KB |
Output is correct |
38 |
Correct |
1366 ms |
389448 KB |
Output is correct |
39 |
Correct |
1768 ms |
451976 KB |
Output is correct |
40 |
Correct |
2029 ms |
513156 KB |
Output is correct |
41 |
Correct |
1098 ms |
325448 KB |
Output is correct |
42 |
Correct |
1540 ms |
385492 KB |
Output is correct |
43 |
Correct |
1989 ms |
444820 KB |
Output is correct |
44 |
Correct |
2348 ms |
504616 KB |
Output is correct |
45 |
Correct |
1286 ms |
325164 KB |
Output is correct |
46 |
Correct |
1766 ms |
386336 KB |
Output is correct |
47 |
Correct |
1949 ms |
453448 KB |
Output is correct |
48 |
Correct |
1983 ms |
515408 KB |
Output is correct |