oj.uz

Submission #922355

# Submission time Handle Problem Language Result Execution time Memory
922355 2024-02-05T12:32:53 Z Shayan86 Klasika (COCI20_klasika) C++14
110 / 110
 2853 ms 414532 KB 
#include <bits/stdc++.h>
using namespace std;

#pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
// Ofast, O0, O1, O2, O3, unroll-loops, fast-math, trapv

typedef long long ll;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;

#define Mp          make_pair
#define sep         ' '
#define endl        '\n'
#define F	        first
#define S	        second
#define pb          push_back
#define all(x)      (x).begin(),(x).end()
#define kill(res)	cout << res << '\n', exit(0);
#define set_dec(x)	cout << fixed << setprecision(x);
#define fast_io     ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define file_io     freopen("input.txt", "r", stdin) ; freopen("output.txt", "w", stdout);

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const ll L = 31;
const ll N = 2e5 + 50;
const ll M = 3e6 + 50;
const ll Mod = 1e9 + 7;

int n, q, sum[N], st[N], ft[N], timer = 1;

vector<int> adj[N];
vector<pair<char, pii>> qu;

void dfs(int v){
    st[v] = timer++;
    for(int u: adj[v]) dfs(u);
    ft[v] = timer;
}

int trieInd = 1, child[M][2];

set<int> idx[M];

void add(int x){
    int cur = 0;
    for(int i = L-1; i >= 0; i--){
        int th = sum[x] >> i & 1;
        if(!child[cur][th]) child[cur][th] = trieInd++;
        cur = child[cur][th]; idx[cur].insert(st[x]);
    }
}

bool ok(int l, int r, int id){
    auto y = idx[id].lower_bound(l);
    return (y != idx[id].end() && (*y) < r);
}

int get(int x, int l, int r){
    int cur = 0, ans = 0;
    for(int i = L-1; i >= 0; i--){
        int th = x >> i & 1;
        if(child[cur][1-th] && ok(l, r, child[cur][1-th])){
            ans += (1 << i); cur = child[cur][1-th];
        }
        else cur = child[cur][th];
    }
    return ans;
}

int main(){
    fast_io;

    cin >> q;

    n = 1;
    for(int i = 1; i <= q; i++){
        string t; int a, b;
        cin >> t >> a >> b;

        if(t[0] == 'A'){
            adj[a].pb(++n);
            sum[n] = sum[a] ^ b;
        }
        qu.pb({t[0], {a, b}});
    }

    dfs(1);

    int m = 1; add(1);
    for(auto [t, e]: qu){
        int a = e.F, b = e.S;

        if(t == 'A') add(++m);
        else cout << get(sum[a], st[b], ft[b]) << endl;
    }

}

Compilation message

klasika.cpp: In function 'int main()':
klasika.cpp:92:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   92 |     for(auto [t, e]: qu){
      |              ^

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 148448 KB Output is correct
2 Correct 35 ms 148308 KB Output is correct
3 Correct 33 ms 148568 KB Output is correct
4 Correct 35 ms 148572 KB Output is correct
5 Correct 34 ms 148384 KB Output is correct
6 Correct 33 ms 148304 KB Output is correct
7 Correct 33 ms 148304 KB Output is correct
8 Correct 37 ms 148572 KB Output is correct
9 Correct 34 ms 148356 KB Output is correct
10 Correct 34 ms 148504 KB Output is correct
11 Correct 34 ms 148308 KB Output is correct
12 Correct 34 ms 148608 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 148448 KB Output is correct
2 Correct 35 ms 148308 KB Output is correct
3 Correct 33 ms 148568 KB Output is correct
4 Correct 35 ms 148572 KB Output is correct
5 Correct 34 ms 148384 KB Output is correct
6 Correct 33 ms 148304 KB Output is correct
7 Correct 33 ms 148304 KB Output is correct
8 Correct 37 ms 148572 KB Output is correct
9 Correct 34 ms 148356 KB Output is correct
10 Correct 34 ms 148504 KB Output is correct
11 Correct 34 ms 148308 KB Output is correct
12 Correct 34 ms 148608 KB Output is correct
13 Correct 35 ms 149084 KB Output is correct
14 Correct 37 ms 149652 KB Output is correct
15 Correct 37 ms 150116 KB Output is correct
16 Correct 38 ms 150644 KB Output is correct
17 Correct 36 ms 148820 KB Output is correct
18 Correct 36 ms 149588 KB Output is correct
19 Correct 38 ms 150108 KB Output is correct
20 Correct 44 ms 150724 KB Output is correct
21 Correct 35 ms 149028 KB Output is correct
22 Correct 40 ms 149844 KB Output is correct
23 Correct 37 ms 150004 KB Output is correct
24 Correct 41 ms 150612 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 537 ms 220064 KB Output is correct
2 Correct 1088 ms 285368 KB Output is correct
3 Correct 1526 ms 349064 KB Output is correct
4 Correct 2019 ms 414128 KB Output is correct
5 Correct 650 ms 218588 KB Output is correct
6 Correct 1260 ms 281996 KB Output is correct
7 Correct 1890 ms 344196 KB Output is correct
8 Correct 2554 ms 407396 KB Output is correct
9 Correct 650 ms 218648 KB Output is correct
10 Correct 1244 ms 283568 KB Output is correct
11 Correct 2214 ms 346196 KB Output is correct
12 Correct 2813 ms 409184 KB Output is correct

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 148448 KB Output is correct
2 Correct 35 ms 148308 KB Output is correct
3 Correct 33 ms 148568 KB Output is correct
4 Correct 35 ms 148572 KB Output is correct
5 Correct 34 ms 148384 KB Output is correct
6 Correct 33 ms 148304 KB Output is correct
7 Correct 33 ms 148304 KB Output is correct
8 Correct 37 ms 148572 KB Output is correct
9 Correct 34 ms 148356 KB Output is correct
10 Correct 34 ms 148504 KB Output is correct
11 Correct 34 ms 148308 KB Output is correct
12 Correct 34 ms 148608 KB Output is correct
13 Correct 35 ms 149084 KB Output is correct
14 Correct 37 ms 149652 KB Output is correct
15 Correct 37 ms 150116 KB Output is correct
16 Correct 38 ms 150644 KB Output is correct
17 Correct 36 ms 148820 KB Output is correct
18 Correct 36 ms 149588 KB Output is correct
19 Correct 38 ms 150108 KB Output is correct
20 Correct 44 ms 150724 KB Output is correct
21 Correct 35 ms 149028 KB Output is correct
22 Correct 40 ms 149844 KB Output is correct
23 Correct 37 ms 150004 KB Output is correct
24 Correct 41 ms 150612 KB Output is correct
25 Correct 537 ms 220064 KB Output is correct
26 Correct 1088 ms 285368 KB Output is correct
27 Correct 1526 ms 349064 KB Output is correct
28 Correct 2019 ms 414128 KB Output is correct
29 Correct 650 ms 218588 KB Output is correct
30 Correct 1260 ms 281996 KB Output is correct
31 Correct 1890 ms 344196 KB Output is correct
32 Correct 2554 ms 407396 KB Output is correct
33 Correct 650 ms 218648 KB Output is correct
34 Correct 1244 ms 283568 KB Output is correct
35 Correct 2214 ms 346196 KB Output is correct
36 Correct 2813 ms 409184 KB Output is correct
37 Correct 1434 ms 220704 KB Output is correct
38 Correct 2005 ms 285364 KB Output is correct
39 Correct 2395 ms 350980 KB Output is correct
40 Correct 2473 ms 414532 KB Output is correct
41 Correct 1266 ms 218584 KB Output is correct
42 Correct 1906 ms 281928 KB Output is correct
43 Correct 2571 ms 345028 KB Output is correct
44 Correct 2853 ms 407032 KB Output is correct
45 Correct 1261 ms 218848 KB Output is correct
46 Correct 1951 ms 282892 KB Output is correct
47 Correct 2379 ms 345392 KB Output is correct
48 Correct 2522 ms 409016 KB Output is correct