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Submission #839148

# Submission time Handle Problem Language Result Execution time Memory
839148 2023-08-28T19:53:11 Z kingmessi Klasika (COCI20_klasika) C++17
33 / 110
 1562 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=200001;
vector<pii> adj[N];
int st[N],en[N],et=0;
int d[N];
 
void dfs(int current,int par){
st[current]=et++;
    for(auto next_vertex : adj[current]){
        if(par == next_vertex.ff)continue;
        d[next_vertex.ff]=d[current]^(next_vertex.ss);
        dfs(next_vertex.ff,current);
    }
en[current]=et;
}

const int SZ = 6200005;
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];
    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 ^= 1<<i;
    }
    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.substr(0,1),{a,b}});
        if(op == "Add"){
            node++;
            adj[a].pb({node,b});
        }
    }
    dfs(1,0);
    rep(i,1,node+1)adj[i].clear();
    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 == "A"){
            node++;
            ins(node);
        }
        else{
            int ans = test(a,b);
            // cout<<"ans"<<endl;
            cout<<ans<<'\n';
        }
    }
}

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 126 ms 296416 KB Output is correct
2 Correct 127 ms 296360 KB Output is correct
3 Correct 119 ms 296476 KB Output is correct
4 Correct 124 ms 296500 KB Output is correct
5 Correct 120 ms 296352 KB Output is correct
6 Correct 117 ms 296348 KB Output is correct
7 Correct 118 ms 296396 KB Output is correct
8 Correct 140 ms 296496 KB Output is correct
9 Correct 116 ms 296312 KB Output is correct
10 Correct 119 ms 296500 KB Output is correct
11 Correct 118 ms 296440 KB Output is correct
12 Correct 117 ms 296484 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 126 ms 296416 KB Output is correct
2 Correct 127 ms 296360 KB Output is correct
3 Correct 119 ms 296476 KB Output is correct
4 Correct 124 ms 296500 KB Output is correct
5 Correct 120 ms 296352 KB Output is correct
6 Correct 117 ms 296348 KB Output is correct
7 Correct 118 ms 296396 KB Output is correct
8 Correct 140 ms 296496 KB Output is correct
9 Correct 116 ms 296312 KB Output is correct
10 Correct 119 ms 296500 KB Output is correct
11 Correct 118 ms 296440 KB Output is correct
12 Correct 117 ms 296484 KB Output is correct
13 Correct 123 ms 296980 KB Output is correct
14 Correct 122 ms 297864 KB Output is correct
15 Correct 120 ms 298456 KB Output is correct
16 Correct 121 ms 299140 KB Output is correct
17 Correct 119 ms 296892 KB Output is correct
18 Correct 122 ms 297668 KB Output is correct
19 Correct 121 ms 298368 KB Output is correct
20 Correct 126 ms 299008 KB Output is correct
21 Correct 120 ms 296952 KB Output is correct
22 Correct 121 ms 297676 KB Output is correct
23 Correct 128 ms 298428 KB Output is correct
24 Correct 123 ms 298920 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 644 ms 374768 KB Output is correct
2 Correct 1126 ms 443316 KB Output is correct
3 Correct 1562 ms 510440 KB Output is correct
4 Runtime error 1273 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 126 ms 296416 KB Output is correct
2 Correct 127 ms 296360 KB Output is correct
3 Correct 119 ms 296476 KB Output is correct
4 Correct 124 ms 296500 KB Output is correct
5 Correct 120 ms 296352 KB Output is correct
6 Correct 117 ms 296348 KB Output is correct
7 Correct 118 ms 296396 KB Output is correct
8 Correct 140 ms 296496 KB Output is correct
9 Correct 116 ms 296312 KB Output is correct
10 Correct 119 ms 296500 KB Output is correct
11 Correct 118 ms 296440 KB Output is correct
12 Correct 117 ms 296484 KB Output is correct
13 Correct 123 ms 296980 KB Output is correct
14 Correct 122 ms 297864 KB Output is correct
15 Correct 120 ms 298456 KB Output is correct
16 Correct 121 ms 299140 KB Output is correct
17 Correct 119 ms 296892 KB Output is correct
18 Correct 122 ms 297668 KB Output is correct
19 Correct 121 ms 298368 KB Output is correct
20 Correct 126 ms 299008 KB Output is correct
21 Correct 120 ms 296952 KB Output is correct
22 Correct 121 ms 297676 KB Output is correct
23 Correct 128 ms 298428 KB Output is correct
24 Correct 123 ms 298920 KB Output is correct
25 Correct 644 ms 374768 KB Output is correct
26 Correct 1126 ms 443316 KB Output is correct
27 Correct 1562 ms 510440 KB Output is correct
28 Runtime error 1273 ms 524288 KB Execution killed with signal 9
29 Halted 0 ms 0 KB -