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Submission #832981

# Submission time Handle Problem Language Result Execution time Memory
832981 2023-08-21T17:47:56 Z damwuan Klasika (COCI20_klasika) C++14
33 / 110
 690 ms 524288 KB 



#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define for1(i,j,k) for(int i=j;i<=k;i++)
#define for2(i,j,k) for(int i=j;i>=k;i--)
#define for3(i,j,k,l) for(int i=j;i<=k;i+=l)
#define bit(n,i) ((n>>i)&1)
#define all(x) x.begin(),x.end()
//#pragma GCC optimize("O2,unroll-loops")
//#pragma GCC target("avx,avx2,bmi,bmi2,sse,sse2,sse3,ssse3,sse4,popcnt")
//#define int long long
typedef long long ll;
typedef pair<int,int> pii;
typedef double ld;
typedef pair<ld,ld> pdd;
typedef pair<ll,ll> pll;
const ll maxn=2e5+5;
const ll offset=1e9;
const ll block_sz=317;
const ll inf=1e9;
const ll mod=1e9+7;
int n;
struct TrieNode
{
    TrieNode* child[2];
    int cnt;
    TrieNode()
    {
        child[0]=child[1]=nullptr;
        cnt=inf;
    }
};
TrieNode* root[maxn];
void Update(TrieNode* r, int u,int Time)
{
    TrieNode* cur=r;
    for2(i,30,0)
    {
        bool nxt=(u>>i)&1;
        if (cur->child[nxt]==nullptr)
        {
            cur->child[nxt]=new TrieNode;
        }
        cur=cur->child[nxt];
        cur->cnt=min(cur->cnt,Time);
    }
}
int Get(TrieNode* r, int u,int Time)
{
    int ans=0;
    TrieNode* cur=r;
    for2(i,30,0)
    {
        bool nxt=((u>>i)&1)^1;
        //cerr<< nxt<<'\n';
        if (cur->child[nxt]!=nullptr && cur->child[nxt]->cnt<=Time)
        {
            cur=cur->child[nxt];
            ans+=(1<<i);
        }
        else
        //if (cur->child[nxt|1]!=nullptr)
        cur=cur->child[nxt^1];
        //else cout << "wtf\n";
    }
    return ans;
}

int q,id[maxn];
string type;
int pre[maxn],ans[maxn];
vector<int> adj[maxn],L[maxn];
vector<pii> qr[maxn];
void dfs(int u)
{
//    cerr<< u<<' '<<pre[u]<<'\n';
    L[u].pb(u);
    Update(root[u],pre[u],id[u]);
    for(int v: adj[u])
    {
//        cerr<< v<<" asd\n";
        dfs(v);
    }
    for(int v: adj[u])
    {
        if (L[v].size()>L[u].size())
        {
            L[u].swap(L[v]);
            swap(root[u],root[v]);
        }
        for(int a:L[v])
        {
            L[u].pb(a);
            Update(root[u],pre[a],id[a]);
        }
        L[v].clear();
    }
    //cerr<< u<< ' '<<L[u].size()<<" wtf\n";
    //...
    for(auto x: qr[u])
    {
        //cerr<< u<<' '<<x.se<<' '<<x.fi<<' '<<L[u].size()<<'\n';
        ans[x.se]=Get(root[u],x.fi,x.se);
    }
}
void sol()
{
    cin >> q;
    n=1;
    for1(i,1,q)
    {
        ans[i]=-1;
        int a,b;cin>> type>>a>>b;
        if (type[0]=='A')
        {
            adj[a].pb(++n);
            pre[n]=pre[a]^b;
            id[n]=i;
        }
        else
        {
            qr[b].pb({pre[a],i});
        }
    }
    for1(i,1,n) root[i]=new TrieNode;
//    cerr<< "kk\n";
    dfs(1);
    for1(i,1,q) if (ans[i]!=-1) cout << ans[i]<<'\n';
}
int32_t main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
//    freopen("GROUPDIV.inp","r",stdin);
//    freopen("GROUPDIV.out","w",stdout);

    int t=1;//cin >> t;
    while (t--)
    {
        sol();
    }
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14420 KB Output is correct
2 Correct 7 ms 14540 KB Output is correct
3 Correct 7 ms 14676 KB Output is correct
4 Correct 7 ms 14676 KB Output is correct
5 Correct 7 ms 14420 KB Output is correct
6 Correct 7 ms 14548 KB Output is correct
7 Correct 9 ms 14664 KB Output is correct
8 Correct 8 ms 14804 KB Output is correct
9 Correct 7 ms 14548 KB Output is correct
10 Correct 7 ms 14676 KB Output is correct
11 Correct 7 ms 14676 KB Output is correct
12 Correct 7 ms 14868 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14420 KB Output is correct
2 Correct 7 ms 14540 KB Output is correct
3 Correct 7 ms 14676 KB Output is correct
4 Correct 7 ms 14676 KB Output is correct
5 Correct 7 ms 14420 KB Output is correct
6 Correct 7 ms 14548 KB Output is correct
7 Correct 9 ms 14664 KB Output is correct
8 Correct 8 ms 14804 KB Output is correct
9 Correct 7 ms 14548 KB Output is correct
10 Correct 7 ms 14676 KB Output is correct
11 Correct 7 ms 14676 KB Output is correct
12 Correct 7 ms 14868 KB Output is correct
13 Correct 8 ms 15188 KB Output is correct
14 Correct 9 ms 15968 KB Output is correct
15 Correct 9 ms 16724 KB Output is correct
16 Correct 10 ms 17308 KB Output is correct
17 Correct 9 ms 15660 KB Output is correct
18 Correct 10 ms 16980 KB Output is correct
19 Correct 12 ms 18584 KB Output is correct
20 Correct 13 ms 19796 KB Output is correct
21 Correct 9 ms 15444 KB Output is correct
22 Correct 10 ms 16596 KB Output is correct
23 Correct 13 ms 17616 KB Output is correct
24 Correct 12 ms 18516 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 162 ms 85980 KB Output is correct
2 Correct 244 ms 151312 KB Output is correct
3 Correct 275 ms 214388 KB Output is correct
4 Correct 343 ms 278220 KB Output is correct
5 Correct 272 ms 181808 KB Output is correct
6 Correct 472 ms 350600 KB Output is correct
7 Correct 690 ms 516712 KB Output is correct
8 Runtime error 608 ms 524288 KB Execution killed with signal 9
9 Halted 0 ms 0 KB -

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14420 KB Output is correct
2 Correct 7 ms 14540 KB Output is correct
3 Correct 7 ms 14676 KB Output is correct
4 Correct 7 ms 14676 KB Output is correct
5 Correct 7 ms 14420 KB Output is correct
6 Correct 7 ms 14548 KB Output is correct
7 Correct 9 ms 14664 KB Output is correct
8 Correct 8 ms 14804 KB Output is correct
9 Correct 7 ms 14548 KB Output is correct
10 Correct 7 ms 14676 KB Output is correct
11 Correct 7 ms 14676 KB Output is correct
12 Correct 7 ms 14868 KB Output is correct
13 Correct 8 ms 15188 KB Output is correct
14 Correct 9 ms 15968 KB Output is correct
15 Correct 9 ms 16724 KB Output is correct
16 Correct 10 ms 17308 KB Output is correct
17 Correct 9 ms 15660 KB Output is correct
18 Correct 10 ms 16980 KB Output is correct
19 Correct 12 ms 18584 KB Output is correct
20 Correct 13 ms 19796 KB Output is correct
21 Correct 9 ms 15444 KB Output is correct
22 Correct 10 ms 16596 KB Output is correct
23 Correct 13 ms 17616 KB Output is correct
24 Correct 12 ms 18516 KB Output is correct
25 Correct 162 ms 85980 KB Output is correct
26 Correct 244 ms 151312 KB Output is correct
27 Correct 275 ms 214388 KB Output is correct
28 Correct 343 ms 278220 KB Output is correct
29 Correct 272 ms 181808 KB Output is correct
30 Correct 472 ms 350600 KB Output is correct
31 Correct 690 ms 516712 KB Output is correct
32 Runtime error 608 ms 524288 KB Execution killed with signal 9
33 Halted 0 ms 0 KB -