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Submission #520269

# Submission time Handle Problem Language Result Execution time Memory
520269 2022-01-29T04:39:15 Z AkiYuu Klasika (COCI20_klasika) C++17
110 / 110
 2560 ms 476808 KB 
/*

Problems:
Author: AkiYuu

*/

#include <bits/stdc++.h>
#define task "GROUP"
#define ll long long
#define ld long double
#define pb push_back
#define ffw(i,a,b) for (ll i = a; i <= b; i++)
#define fbw(i,b,a) for (ll i = b; i >= a; i--)
#define adj(v,adj,u) for (auto v : adj[u])
#define rep(i,a) for (auto i : a)
#define reset(a) memset(a, 0, sizeof(a))
#define sz(a) a.size()
#define all(a) a.begin(),a.end()

using namespace std;

void fastio(){
	ios_base::sync_with_stdio(false);
	cin.tie(0); cout.tie(0);
//	freopen(task".inp", "r", stdin);
//	freopen(task".out", "w", stdout);
}

const int mxn = 1e6 + 5;
typedef pair<ll, ll> ii;

vector < vector < int > > op;
int q;
int tin[mxn], tout[mxn], xored[mxn], timer;
int trie[30 * 200005][2], dem;
vector  < set<int> > TinBag;
vector < int > a[mxn];

void dfs(int u){
    tin[u] = ++timer;
    adj(v,a,u) dfs(v);
    tout[u] = ++timer;
}

void add(int u, ll s){
    int node = 0;

//    cout << "ADD: ";
    fbw(i,29,0){
        int x = ( s & ( 1 << i) )> 0;
//        cout << x;
        if ( trie[node][x] == 0 ){
            trie[node][x] = ++dem;
            TinBag.pb( set<int>() );
        }
        node = trie[node][x];
        TinBag[node].insert( tin[u] );
    }
//    cout << '\n';
}

ll getmax(int u , ll s){

    int node = 0;
    fbw(i,29,0){
        int x = (s & (1 << i) ) > 0;
        bool issub = 0;
        int nxt = trie[node][x ^ 1];

        if ( trie[node][x ^ 1] ){
            auto pos = TinBag[ nxt ].lower_bound(tin[u]);
            if ( pos != TinBag[ nxt ].end() && *pos <= tout[u] ) issub = 1;
            else issub = 0;
        }

        if ( issub ) {
            s ^= ( (x ^ 1) << i);
            node = trie[ node ][ x ^ 1];
        } else {
            s ^= (x << i);
            node = trie[ node ][x];
        }
    }
    return s;
}

void solve(){
    cin >> q;
    int curnode = 1;
    ffw(i,1,q){
        string type;
        ll u , v;
        cin >> type >> u >> v;
        if ( type == "Add") {
            a[u].pb(++curnode);
            xored[curnode] = xored[u] ^ v;
            op.pb({0,curnode,xored[curnode]});
        } else {
            op.pb({1,u,v});
        }
    }
    TinBag.pb( set<int>() );
    dfs(1);
    add(1, xored[1]);
    for ( auto i : op){
        if ( i[0] == 0)
            add(i[1], i[2]);
        else
            cout << getmax(i[2], xored[ i[1] ]) << '\n';
    }
}

int main(){
	fastio();
	int t = 1;
//	cin >> t;
	while (t--)
	solve();
}

Compilation message

klasika.cpp: In function 'void solve()':
klasika.cpp:101:22: warning: narrowing conversion of 'u' from 'long long int' to 'int' [-Wnarrowing]
  101 |             op.pb({1,u,v});
      |                      ^
klasika.cpp:101:22: warning: narrowing conversion of 'u' from 'long long int' to 'int' [-Wnarrowing]
klasika.cpp:101:24: warning: narrowing conversion of 'v' from 'long long int' to 'int' [-Wnarrowing]
  101 |             op.pb({1,u,v});
      |                        ^
klasika.cpp:101:24: warning: narrowing conversion of 'v' from 'long long int' to 'int' [-Wnarrowing]

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23936 KB Output is correct
2 Correct 12 ms 24040 KB Output is correct
3 Correct 12 ms 24192 KB Output is correct
4 Correct 12 ms 24184 KB Output is correct
5 Correct 12 ms 23932 KB Output is correct
6 Correct 12 ms 24016 KB Output is correct
7 Correct 13 ms 24192 KB Output is correct
8 Correct 12 ms 24272 KB Output is correct
9 Correct 12 ms 23988 KB Output is correct
10 Correct 13 ms 24184 KB Output is correct
11 Correct 13 ms 24140 KB Output is correct
12 Correct 14 ms 24172 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23936 KB Output is correct
2 Correct 12 ms 24040 KB Output is correct
3 Correct 12 ms 24192 KB Output is correct
4 Correct 12 ms 24184 KB Output is correct
5 Correct 12 ms 23932 KB Output is correct
6 Correct 12 ms 24016 KB Output is correct
7 Correct 13 ms 24192 KB Output is correct
8 Correct 12 ms 24272 KB Output is correct
9 Correct 12 ms 23988 KB Output is correct
10 Correct 13 ms 24184 KB Output is correct
11 Correct 13 ms 24140 KB Output is correct
12 Correct 14 ms 24172 KB Output is correct
13 Correct 15 ms 25284 KB Output is correct
14 Correct 17 ms 26748 KB Output is correct
15 Correct 18 ms 27116 KB Output is correct
16 Correct 21 ms 29656 KB Output is correct
17 Correct 16 ms 25352 KB Output is correct
18 Correct 21 ms 26756 KB Output is correct
19 Correct 23 ms 27068 KB Output is correct
20 Correct 20 ms 27964 KB Output is correct
21 Correct 16 ms 25280 KB Output is correct
22 Correct 17 ms 26668 KB Output is correct
23 Correct 18 ms 27068 KB Output is correct
24 Correct 20 ms 27980 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 637 ms 141180 KB Output is correct
2 Correct 1169 ms 249992 KB Output is correct
3 Correct 1646 ms 309412 KB Output is correct
4 Correct 2098 ms 476720 KB Output is correct
5 Correct 698 ms 139244 KB Output is correct
6 Correct 1247 ms 246344 KB Output is correct
7 Correct 1722 ms 304636 KB Output is correct
8 Correct 2296 ms 469232 KB Output is correct
9 Correct 682 ms 139700 KB Output is correct
10 Correct 1182 ms 247180 KB Output is correct
11 Correct 1654 ms 306800 KB Output is correct
12 Correct 2159 ms 470788 KB Output is correct

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23936 KB Output is correct
2 Correct 12 ms 24040 KB Output is correct
3 Correct 12 ms 24192 KB Output is correct
4 Correct 12 ms 24184 KB Output is correct
5 Correct 12 ms 23932 KB Output is correct
6 Correct 12 ms 24016 KB Output is correct
7 Correct 13 ms 24192 KB Output is correct
8 Correct 12 ms 24272 KB Output is correct
9 Correct 12 ms 23988 KB Output is correct
10 Correct 13 ms 24184 KB Output is correct
11 Correct 13 ms 24140 KB Output is correct
12 Correct 14 ms 24172 KB Output is correct
13 Correct 15 ms 25284 KB Output is correct
14 Correct 17 ms 26748 KB Output is correct
15 Correct 18 ms 27116 KB Output is correct
16 Correct 21 ms 29656 KB Output is correct
17 Correct 16 ms 25352 KB Output is correct
18 Correct 21 ms 26756 KB Output is correct
19 Correct 23 ms 27068 KB Output is correct
20 Correct 20 ms 27964 KB Output is correct
21 Correct 16 ms 25280 KB Output is correct
22 Correct 17 ms 26668 KB Output is correct
23 Correct 18 ms 27068 KB Output is correct
24 Correct 20 ms 27980 KB Output is correct
25 Correct 637 ms 141180 KB Output is correct
26 Correct 1169 ms 249992 KB Output is correct
27 Correct 1646 ms 309412 KB Output is correct
28 Correct 2098 ms 476720 KB Output is correct
29 Correct 698 ms 139244 KB Output is correct
30 Correct 1247 ms 246344 KB Output is correct
31 Correct 1722 ms 304636 KB Output is correct
32 Correct 2296 ms 469232 KB Output is correct
33 Correct 682 ms 139700 KB Output is correct
34 Correct 1182 ms 247180 KB Output is correct
35 Correct 1654 ms 306800 KB Output is correct
36 Correct 2159 ms 470788 KB Output is correct
37 Correct 1088 ms 141668 KB Output is correct
38 Correct 1553 ms 250584 KB Output is correct
39 Correct 1909 ms 311992 KB Output is correct
40 Correct 2295 ms 476808 KB Output is correct
41 Correct 1256 ms 139780 KB Output is correct
42 Correct 1787 ms 246636 KB Output is correct
43 Correct 2144 ms 304940 KB Output is correct
44 Correct 2560 ms 469420 KB Output is correct
45 Correct 1309 ms 140124 KB Output is correct
46 Correct 1836 ms 247532 KB Output is correct
47 Correct 2129 ms 305788 KB Output is correct
48 Correct 2434 ms 470928 KB Output is correct