oj.uz

Submission #1116373

# Submission time Handle Problem Language Result Execution time Memory
1116373 2024-11-21T14:36:40 Z 8pete8 Klasika (COCI20_klasika) C++17
110 / 110
 2996 ms 196336 KB 
#include<iostream>
#include<stack>
#include<map>
#include<vector>
#include<string>
#include<unordered_map>
#include <queue>
#include<cstring>
#include<limits.h>
#include <cassert>
#include<cmath>
#include<set>
#include<algorithm>
#include <iomanip>
#include<numeric> //gcd(a,b)
#include<bitset>
#define ll long long
#define f first
#define endl "\n"
#define s second
#define pii pair<int,int>
#define ppii pair<int,pii>
#define vi vector<int>
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define F(n) for(int i=0;i<n;i++)
#define lb lower_bound
#define ub upper_bound
#define fastio ios::sync_with_stdio(false);cin.tie(NULL);
#pragma GCC optimize ("03,unroll-loops")
using namespace std;
#define int long long
#define double long double
const int mxn=2e5+5,lg=30,inf=1e9,minf=-1e9;
int n,q;
vector<pair<int,pii>>qry;
vector<pii>adj[mxn+10];
int tin[mxn+10],tout[mxn+10],T=0,dist[mxn+10];
void dfs(int cur,int p){
	tin[cur]=++T;
	for(auto i:adj[cur])if(i.f!=p){
		dist[i.f]=dist[cur]^i.s;
		dfs(i.f,cur);
	}
	tout[cur]=T;
}
struct mst{
	set<int>v[2*mxn+10];
	void update(int pos,int val){
		pos+=n;
		v[pos].insert(val);
		for(int i=pos;i>0;i>>=1)v[i>>1].insert(val);
	}
	int check(int pos,int x,int y){
		auto it=v[pos].lb(x);
		if(it==v[pos].end())return 0;
		return (*it)<=y;
	}
	int qry(int l,int r,int x,int y){
		int have=0;
		for(l+=n,r+=n;l<=r;l>>=1,r>>=1){
			if(l&1)have|=check(l++,x,y);
			if(!(r&1))have|=check(r--,x,y);
		}
		return have;
	}
}t;
int32_t main(){
	fastio
	cin>>q;
	n=1;
	for(int i=0;i<q;i++){
		string a;cin>>a;
		int x,y;cin>>x>>y;
		if(a[0]=='A'){
			n++;
			qry.pb({1,{n,y}});
			adj[n].pb({x,y});
			adj[x].pb({n,y});
		}
		else qry.pb({0,{x,y}});
	}
	dfs(1,-1);
	t.update(1,0);
	for(int i=0;i<q;i++){
		if(qry[i].f)t.update(tin[qry[i].s.f],dist[qry[i].s.f]);
		else{
			int cur=0;
			for(int k=30;k>=0;k--){
				if(!(dist[qry[i].s.f]&(1LL<<k))){
					//trying to get 1
					cur+=(1LL<<k);
					if(!t.qry(tin[qry[i].s.s],tout[qry[i].s.s],cur,cur+(1LL<<k)-1))cur-=(1LL<<k);
				}
				else{
					if(!t.qry(tin[qry[i].s.s],tout[qry[i].s.s],cur,cur+(1LL<<k)-1))cur+=(1LL<<k);
				}
			}
			cout<<(dist[qry[i].s.f]^cur)<<'\n';
		}
	}
}
/*
basically given a value x
find a value y in rang [l,r] where x^y is minimum

try fixing bit
let say we fix suffix(most sig bit) to be XXX1001
and the X are not fix
the min value is 0001001 and max value is 1111001
to see if there exist a value with this suffix 
just check if theres a value between 0001001 and 1111001
merge sort tree on euler tour?
each update = log^2(n)
qry =log^3(n)
x=add,y=qry
y=2e5-x;
xlog^2(x) + ylog^2(x)30
xlog^2(x)+(2e5-x)log^2(x)30
worst case x=33,300 y=1e8
should pass??
*/

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 28496 KB Output is correct
2 Correct 5 ms 28496 KB Output is correct
3 Correct 6 ms 28640 KB Output is correct
4 Correct 6 ms 28496 KB Output is correct
5 Correct 5 ms 28496 KB Output is correct
6 Correct 6 ms 28496 KB Output is correct
7 Correct 6 ms 28496 KB Output is correct
8 Correct 6 ms 28496 KB Output is correct
9 Correct 6 ms 28496 KB Output is correct
10 Correct 5 ms 28496 KB Output is correct
11 Correct 6 ms 28496 KB Output is correct
12 Correct 6 ms 28496 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 28496 KB Output is correct
2 Correct 5 ms 28496 KB Output is correct
3 Correct 6 ms 28640 KB Output is correct
4 Correct 6 ms 28496 KB Output is correct
5 Correct 5 ms 28496 KB Output is correct
6 Correct 6 ms 28496 KB Output is correct
7 Correct 6 ms 28496 KB Output is correct
8 Correct 6 ms 28496 KB Output is correct
9 Correct 6 ms 28496 KB Output is correct
10 Correct 5 ms 28496 KB Output is correct
11 Correct 6 ms 28496 KB Output is correct
12 Correct 6 ms 28496 KB Output is correct
13 Correct 9 ms 28752 KB Output is correct
14 Correct 10 ms 29008 KB Output is correct
15 Correct 9 ms 29520 KB Output is correct
16 Correct 10 ms 29776 KB Output is correct
17 Correct 8 ms 29008 KB Output is correct
18 Correct 8 ms 29008 KB Output is correct
19 Correct 8 ms 29264 KB Output is correct
20 Correct 8 ms 29520 KB Output is correct
21 Correct 8 ms 28920 KB Output is correct
22 Correct 8 ms 29008 KB Output is correct
23 Correct 11 ms 29264 KB Output is correct
24 Correct 11 ms 29520 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1232 ms 67280 KB Output is correct
2 Correct 1586 ms 113972 KB Output is correct
3 Correct 1555 ms 154036 KB Output is correct
4 Correct 1373 ms 195868 KB Output is correct
5 Correct 1856 ms 73844 KB Output is correct
6 Correct 2536 ms 112460 KB Output is correct
7 Correct 2611 ms 151532 KB Output is correct
8 Correct 2996 ms 192492 KB Output is correct
9 Correct 2007 ms 73828 KB Output is correct
10 Correct 2109 ms 112876 KB Output is correct
11 Correct 2191 ms 152424 KB Output is correct
12 Correct 1871 ms 193400 KB Output is correct

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 28496 KB Output is correct
2 Correct 5 ms 28496 KB Output is correct
3 Correct 6 ms 28640 KB Output is correct
4 Correct 6 ms 28496 KB Output is correct
5 Correct 5 ms 28496 KB Output is correct
6 Correct 6 ms 28496 KB Output is correct
7 Correct 6 ms 28496 KB Output is correct
8 Correct 6 ms 28496 KB Output is correct
9 Correct 6 ms 28496 KB Output is correct
10 Correct 5 ms 28496 KB Output is correct
11 Correct 6 ms 28496 KB Output is correct
12 Correct 6 ms 28496 KB Output is correct
13 Correct 9 ms 28752 KB Output is correct
14 Correct 10 ms 29008 KB Output is correct
15 Correct 9 ms 29520 KB Output is correct
16 Correct 10 ms 29776 KB Output is correct
17 Correct 8 ms 29008 KB Output is correct
18 Correct 8 ms 29008 KB Output is correct
19 Correct 8 ms 29264 KB Output is correct
20 Correct 8 ms 29520 KB Output is correct
21 Correct 8 ms 28920 KB Output is correct
22 Correct 8 ms 29008 KB Output is correct
23 Correct 11 ms 29264 KB Output is correct
24 Correct 11 ms 29520 KB Output is correct
25 Correct 1232 ms 67280 KB Output is correct
26 Correct 1586 ms 113972 KB Output is correct
27 Correct 1555 ms 154036 KB Output is correct
28 Correct 1373 ms 195868 KB Output is correct
29 Correct 1856 ms 73844 KB Output is correct
30 Correct 2536 ms 112460 KB Output is correct
31 Correct 2611 ms 151532 KB Output is correct
32 Correct 2996 ms 192492 KB Output is correct
33 Correct 2007 ms 73828 KB Output is correct
34 Correct 2109 ms 112876 KB Output is correct
35 Correct 2191 ms 152424 KB Output is correct
36 Correct 1871 ms 193400 KB Output is correct
37 Correct 1470 ms 75404 KB Output is correct
38 Correct 1838 ms 114476 KB Output is correct
39 Correct 1743 ms 155264 KB Output is correct
40 Correct 1580 ms 196336 KB Output is correct
41 Correct 368 ms 74200 KB Output is correct
42 Correct 843 ms 111596 KB Output is correct
43 Correct 1663 ms 151016 KB Output is correct
44 Correct 2192 ms 192228 KB Output is correct
45 Correct 686 ms 74200 KB Output is correct
46 Correct 1002 ms 111856 KB Output is correct
47 Correct 1203 ms 151520 KB Output is correct
48 Correct 1367 ms 193448 KB Output is correct