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Submission #839135

# Submission time Handle Problem Language Result Execution time Memory
839135 2023-08-28T19:36:40 Z kingmessi Klasika (COCI20_klasika) C++17
33 / 110
 1728 ms 524288 KB 
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp> // Common file
#include <ext/pb_ds/tree_policy.hpp>
#define ll long long
// #define int long long
#define rep(i,a,b) for(int i=a;i<b;i++)
#define rrep(i,a,b) for(int i=a;i>=b;i--)
#define repin rep(i,0,n)
#define di(a) int a;cin>>a;
#define precise(i) cout<<fixed<<setprecision(i)
#define vi vector<int>
#define si set<int>
#define mii map<int,int>
#define take(a,n) for(int j=0;j<n;j++) cin>>a[j];
#define give(a,n) for(int j=0;j<n;j++) cout<<a[j]<<' ';
#define vpii vector<pair<int,int>>
#define sis string s;
#define sin string s;cin>>s;
#define db double
#define be(x) x.begin(),x.end()
#define pii pair<int,int>
#define pb push_back
#define pob pop_back
#define ff first
#define ss second
#define lb lower_bound
#define ub upper_bound
#define bpc(x) __builtin_popcountll(x) 
#define btz(x) __builtin_ctz(x)
using namespace std;

using namespace __gnu_pbds;

typedef tree<int, null_type, less<int>, rb_tree_tag,tree_order_statistics_node_update> ordered_set;
typedef tree<pair<int, int>, null_type,less<pair<int, int> >, rb_tree_tag,tree_order_statistics_node_update> ordered_multiset;

const long long INF=1e18;
const long long M=1e9+7;
const long long MM=998244353;
  
int power( int N, int M){
    int power = N, sum = 1;
    if(N == 0) sum = 0;
    while(M > 0){if((M & 1) == 1){sum *= power;}
    power = power * power;M = M >> 1;}
    return sum;
}

const int N=200005;
vector<pii> adj[N];
int st[N],en[N],et=0;
int d[N];
bool visited[N];
 
void dfs(int current){
st[current]=et++;
visited[current]=true;
    for(auto next_vertex : adj[current]){
        if(visited[next_vertex.ff])continue;
        d[next_vertex.ff]=d[current]^(next_vertex.ss);
        dfs(next_vertex.ff);
    }
en[current]=et;
}

const int SZ = 6000001;
const int MXBIT = 30;
si s[SZ];
int nex[SZ][2],num = 0;
void ins(int node) {
    int x = d[node];
    int cur = 0;
    s[cur].insert(st[node]);
    rrep(i,MXBIT,0) {
        int t = (x>>i)&1;
        if (!nex[cur][t]) {nex[cur][t] = ++num;}
        cur = nex[cur][t];
        s[cur].insert(st[node]);
    }
}

int test(int a,int b) {
    int x = d[a];
    // cout<<x<<" "<<a<<" "<<b<<endl;
    int cur = 0;
    rrep(i,MXBIT,0) {
        int t = ((x>>i)&1)^1;
        if (!nex[cur][t]){
            t^=1;
        }
        else{
            auto it = s[nex[cur][t]].lb(st[b]);
            if(it != s[nex[cur][t]].end()){
                int res = *(it);
                if(res >= en[b])t^=1;
            }
            else t^=1;
        }
        cur = nex[cur][t]; if (t) x ^= 1LL<<i;
        // cout<<cur<<"hi"<<endl;
    }
    return x;
}



void solve()
{
    vector<pair<string, pii>> qry;
    int node = 1;
    int q;cin>>q;
    rep(i,0,q){
        string op;
        cin>>op;
        int a,b;
        cin>>a>>b;
        qry.pb({op,{a,b}});
        if(op == "Add"){
            node++;
            adj[a].pb({node,b});
        }
    }
    dfs(1);
    // give(d,node+1);cout<<endl;
    // give(st,node+1);cout<<endl;
    // give(en,node+1);cout<<endl;
    node = 1;
    ins(1);
    rep(i,0,q){
        string op = qry[i].ff;
        int a = qry[i].ss.ff;
        int b = qry[i].ss.ss;
        if(op == "Add"){
            node++;
            ins(node);
        }
        else{
            int ans = test(a,b);
            // cout<<"ans"<<endl;
            cout<<ans<<endl;
        }
    }
    // cout<<num<<endl;
    // rep(i,0,num+1){
    //     for(auto x : s[i])cout<<x<<" ";cout<<"end"<<endl;
    // }
}

signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    #ifdef NCR
        init();
    #endif
    #ifdef SIEVE
        sieve();
    #endif
        solve();
    return 0;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 118 ms 286796 KB Output is correct
2 Correct 127 ms 286884 KB Output is correct
3 Correct 118 ms 286924 KB Output is correct
4 Correct 117 ms 287072 KB Output is correct
5 Correct 118 ms 286872 KB Output is correct
6 Correct 130 ms 286852 KB Output is correct
7 Correct 117 ms 286972 KB Output is correct
8 Correct 140 ms 286984 KB Output is correct
9 Correct 118 ms 286796 KB Output is correct
10 Correct 120 ms 286896 KB Output is correct
11 Correct 116 ms 286992 KB Output is correct
12 Correct 120 ms 287044 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 118 ms 286796 KB Output is correct
2 Correct 127 ms 286884 KB Output is correct
3 Correct 118 ms 286924 KB Output is correct
4 Correct 117 ms 287072 KB Output is correct
5 Correct 118 ms 286872 KB Output is correct
6 Correct 130 ms 286852 KB Output is correct
7 Correct 117 ms 286972 KB Output is correct
8 Correct 140 ms 286984 KB Output is correct
9 Correct 118 ms 286796 KB Output is correct
10 Correct 120 ms 286896 KB Output is correct
11 Correct 116 ms 286992 KB Output is correct
12 Correct 120 ms 287044 KB Output is correct
13 Correct 122 ms 287564 KB Output is correct
14 Correct 128 ms 288252 KB Output is correct
15 Correct 123 ms 288968 KB Output is correct
16 Correct 123 ms 289604 KB Output is correct
17 Correct 128 ms 287528 KB Output is correct
18 Correct 122 ms 288148 KB Output is correct
19 Correct 127 ms 288916 KB Output is correct
20 Correct 127 ms 289568 KB Output is correct
21 Correct 121 ms 287560 KB Output is correct
22 Correct 122 ms 288204 KB Output is correct
23 Correct 123 ms 289060 KB Output is correct
24 Correct 126 ms 289612 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 845 ms 364708 KB Output is correct
2 Correct 1221 ms 432748 KB Output is correct
3 Correct 1728 ms 499380 KB Output is correct
4 Runtime error 1475 ms 524288 KB Execution killed with signal 9
5 Halted 0 ms 0 KB -

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 118 ms 286796 KB Output is correct
2 Correct 127 ms 286884 KB Output is correct
3 Correct 118 ms 286924 KB Output is correct
4 Correct 117 ms 287072 KB Output is correct
5 Correct 118 ms 286872 KB Output is correct
6 Correct 130 ms 286852 KB Output is correct
7 Correct 117 ms 286972 KB Output is correct
8 Correct 140 ms 286984 KB Output is correct
9 Correct 118 ms 286796 KB Output is correct
10 Correct 120 ms 286896 KB Output is correct
11 Correct 116 ms 286992 KB Output is correct
12 Correct 120 ms 287044 KB Output is correct
13 Correct 122 ms 287564 KB Output is correct
14 Correct 128 ms 288252 KB Output is correct
15 Correct 123 ms 288968 KB Output is correct
16 Correct 123 ms 289604 KB Output is correct
17 Correct 128 ms 287528 KB Output is correct
18 Correct 122 ms 288148 KB Output is correct
19 Correct 127 ms 288916 KB Output is correct
20 Correct 127 ms 289568 KB Output is correct
21 Correct 121 ms 287560 KB Output is correct
22 Correct 122 ms 288204 KB Output is correct
23 Correct 123 ms 289060 KB Output is correct
24 Correct 126 ms 289612 KB Output is correct
25 Correct 845 ms 364708 KB Output is correct
26 Correct 1221 ms 432748 KB Output is correct
27 Correct 1728 ms 499380 KB Output is correct
28 Runtime error 1475 ms 524288 KB Execution killed with signal 9
29 Halted 0 ms 0 KB -