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Submission #1088850

# Submission time Handle Problem Language Result Execution time Memory
1088850 2024-09-15T10:16:18 Z vladilius Klasika (COCI20_klasika) C++17
33 / 110
 878 ms 524288 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
#define pb push_back
#define ff first
#define ss second
#define arr3 array<int, 3>
const int lg = 31;
const int inf = 5e7;

struct node{
    int nt[2];
};

node t[inf];
int cc = 0;

struct TR{
    int k;
    void init(){
        t[++cc] = {};
        t[++cc] = {};
        k = cc;
    }
    void add(int x){
        int v = k;
        for (int i = lg; i >= 0; i--){
            bool bit = (x >> i) & 1;
            if (!t[v].nt[bit]){
                t[v].nt[bit] = ++cc;
            }
            v = t[v].nt[bit];
        }
    }
    int get(int x){
        int out = 0, v = k;
        for (int i = lg; i >= 0; i--){
            bool bit = (x >> i) & 1;
            if (t[v].nt[!bit]){
                v = t[v].nt[!bit];
                out += (1 << i);
                continue;
            }
            v = t[v].nt[bit];
        }
        return out;
    }
};

struct ST{
    vector<TR> t;
    int n;
    ST(int ns){
        n = ns;
        t.resize(4 * n);
        for (int i = 0; i < 4 * n; i++){
            t[i].init();
        }
    }
    void add(int v, int tl, int tr, int& p, int& x){
        t[v].add(x);
        if (tl == tr) return;
        int tm = (tl + tr) / 2, vv = 2 * v;
        if (p <= tm){
            add(vv, tl, tm, p, x);
        }
        else {
            add(vv + 1, tm + 1, tr, p, x);
        }
    }
    void add(int p, int x){
        add(1, 1, n, p, x);
    }
    int get(int v, int tl, int tr, int& l, int& r, int& x){
        if (l > tr || r < tl) return 0;
        if (l <= tl && tr <= r){
            return t[v].get(x);
        }
        int tm = (tl + tr) / 2, vv = 2 * v;
        return max(get(vv, tl, tm, l, r, x), get(vv + 1, tm + 1, tr, l, r, x));
    }
    int get(int l, int r, int x){
        return get(1, 1, n, l, r, x);
    }
};

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    for (int i = 0; i < inf; i++) t[i].nt[0] = t[i].nt[1] = 0;
    
    int q, cc = 1; cin>>q;
    vector<arr3> qs;
    vector<pii> g[q + 1];
    for (int i = 1; i <= q; i++){
        string type; int x, y; cin>>type>>x>>y;
        if (type[0] == 'A'){
            cc++;
            g[x].pb({cc, y});
            qs.pb({0, x, cc});
        }
        else {
            qs.pb({1, x, y});
        }
    }
    int n = cc;
    vector<int> tin(n + 1), tout(n + 1), d(n + 1);
    int timer = 0;
    function<void(int)> fill = [&](int v){
        tin[v] = ++timer;
        for (auto [i, w]: g[v]){
            d[i] = d[v] ^ w;
            fill(i);
        }
        tout[v] = timer;
    };
    fill(1);
    
    ST T(n);
    T.add(1, 0);
    for (auto [type, x, y]: qs){
        if (!type){
            T.add(tin[y], d[y]);
        }
        else {
            cout<<T.get(tin[y], tout[y], d[x])<<"\n";
        }
    }
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 137 ms 391764 KB Output is correct
2 Correct 142 ms 391760 KB Output is correct
3 Correct 148 ms 391764 KB Output is correct
4 Correct 153 ms 392016 KB Output is correct
5 Correct 136 ms 391764 KB Output is correct
6 Correct 145 ms 391760 KB Output is correct
7 Correct 136 ms 391760 KB Output is correct
8 Correct 146 ms 391764 KB Output is correct
9 Correct 163 ms 391760 KB Output is correct
10 Correct 139 ms 391760 KB Output is correct
11 Correct 136 ms 391760 KB Output is correct
12 Correct 136 ms 391800 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 137 ms 391764 KB Output is correct
2 Correct 142 ms 391760 KB Output is correct
3 Correct 148 ms 391764 KB Output is correct
4 Correct 153 ms 392016 KB Output is correct
5 Correct 136 ms 391764 KB Output is correct
6 Correct 145 ms 391760 KB Output is correct
7 Correct 136 ms 391760 KB Output is correct
8 Correct 146 ms 391764 KB Output is correct
9 Correct 163 ms 391760 KB Output is correct
10 Correct 139 ms 391760 KB Output is correct
11 Correct 136 ms 391760 KB Output is correct
12 Correct 136 ms 391800 KB Output is correct
13 Correct 139 ms 391760 KB Output is correct
14 Correct 155 ms 392016 KB Output is correct
15 Correct 145 ms 392016 KB Output is correct
16 Correct 137 ms 392016 KB Output is correct
17 Correct 142 ms 391764 KB Output is correct
18 Correct 150 ms 391916 KB Output is correct
19 Correct 146 ms 391760 KB Output is correct
20 Correct 140 ms 391996 KB Output is correct
21 Correct 135 ms 391760 KB Output is correct
22 Correct 135 ms 391936 KB Output is correct
23 Correct 140 ms 391924 KB Output is correct
24 Correct 140 ms 391920 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 289 ms 408812 KB Output is correct
2 Correct 363 ms 414204 KB Output is correct
3 Correct 432 ms 419324 KB Output is correct
4 Runtime error 878 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 137 ms 391764 KB Output is correct
2 Correct 142 ms 391760 KB Output is correct
3 Correct 148 ms 391764 KB Output is correct
4 Correct 153 ms 392016 KB Output is correct
5 Correct 136 ms 391764 KB Output is correct
6 Correct 145 ms 391760 KB Output is correct
7 Correct 136 ms 391760 KB Output is correct
8 Correct 146 ms 391764 KB Output is correct
9 Correct 163 ms 391760 KB Output is correct
10 Correct 139 ms 391760 KB Output is correct
11 Correct 136 ms 391760 KB Output is correct
12 Correct 136 ms 391800 KB Output is correct
13 Correct 139 ms 391760 KB Output is correct
14 Correct 155 ms 392016 KB Output is correct
15 Correct 145 ms 392016 KB Output is correct
16 Correct 137 ms 392016 KB Output is correct
17 Correct 142 ms 391764 KB Output is correct
18 Correct 150 ms 391916 KB Output is correct
19 Correct 146 ms 391760 KB Output is correct
20 Correct 140 ms 391996 KB Output is correct
21 Correct 135 ms 391760 KB Output is correct
22 Correct 135 ms 391936 KB Output is correct
23 Correct 140 ms 391924 KB Output is correct
24 Correct 140 ms 391920 KB Output is correct
25 Correct 289 ms 408812 KB Output is correct
26 Correct 363 ms 414204 KB Output is correct
27 Correct 432 ms 419324 KB Output is correct
28 Runtime error 878 ms 524288 KB Execution killed with signal 9
29 Halted 0 ms 0 KB -