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답안 #1113979

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1113979 2024-11-18T03:31:44 Z 12345678 Klasika (COCI20_klasika) C++17
110 / 110
 1195 ms 113228 KB 
#include <bits/stdc++.h>

using namespace std;

const int nx=2e5+5;

int q, x, y, dp[nx], cur=1, t[nx], res[nx], sz[nx];
string s;
vector<int> d[nx];
vector<pair<int, int>> qrs[nx];

struct node
{
    int mn;
    node *l, *r;
    node(): mn(1e9), l(0), r(0){}
};
typedef node* pnode;
pnode rt[nx];

void add(int x, int u)
{
    if (!rt[x]) rt[x]=new node(), rt[x]->mn=0;
    pnode c=rt[x];
    for (int i=30; i>=0; i--)
    {
        if (dp[u]&(1<<i))
        {
            if (!c->r) c->r=new node();
            c=c->r;
            c->mn=min(c->mn, t[u]);
        }
        else
        {
            if (!c->l) c->l=new node();
            c=c->l;
            c->mn=min(c->mn, t[u]);
        }
    }
}

void dfsadd(int u, int p)
{
    add(p, u);
    for (auto v:d[u]) dfsadd(v, p);
}

void dfsdelete(pnode x)
{
    if (!x) return;
    dfsdelete(x->l);
    dfsdelete(x->r);
    delete x;
}

void solve(int u)
{
    sz[u]=1;
    pair<int, int> hv;
    for (auto v:d[u]) solve(v), sz[u]+=sz[v], hv=max(hv, {sz[v], v});
    if (hv.second) swap(rt[u], rt[hv.second]);
    for (auto v:d[u]) if (v!=hv.second) dfsdelete(rt[v]), dfsadd(v, u);
    add(u, u);
    for (auto [x, idx]:qrs[u])
    {
        int ans=0;
        pnode cur=rt[u];
        for (int i=0; i<=30; i++)
        {
            if (dp[x]&(1<<(30-i)))
            {
                if (cur->l&&cur->l->mn<=idx) ans+=(1<<(30-i)), cur=cur->l;
                else cur=cur->r; 
            }
            else
            {
                if (cur->r&&cur->r->mn<=idx) ans+=(1<<(30-i)), cur=cur->r;
                else cur=cur->l;
            }
        }
        res[idx]=ans;
    }
}

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>q;
    for (int i=1; i<=q; i++)
    {
        cin>>s>>x>>y;
        res[i]=-1;
        if (s[0]=='A') dp[++cur]=dp[x]^y, d[x].push_back(cur), t[cur]=i;
        else qrs[y].push_back({x, i});
    }
    solve(1);
    for (int i=1; i<=q; i++) if (res[i]!=-1) cout<<res[i]<<'\n';
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 12624 KB Output is correct
2 Correct 4 ms 11344 KB Output is correct
3 Correct 4 ms 11360 KB Output is correct
4 Correct 6 ms 11416 KB Output is correct
5 Correct 8 ms 11344 KB Output is correct
6 Correct 7 ms 11344 KB Output is correct
7 Correct 7 ms 11344 KB Output is correct
8 Correct 5 ms 11344 KB Output is correct
9 Correct 4 ms 12624 KB Output is correct
10 Correct 4 ms 11344 KB Output is correct
11 Correct 5 ms 11344 KB Output is correct
12 Correct 4 ms 12880 KB Output is correct

Subtask #2
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 12624 KB Output is correct
2 Correct 4 ms 11344 KB Output is correct
3 Correct 4 ms 11360 KB Output is correct
4 Correct 6 ms 11416 KB Output is correct
5 Correct 8 ms 11344 KB Output is correct
6 Correct 7 ms 11344 KB Output is correct
7 Correct 7 ms 11344 KB Output is correct
8 Correct 5 ms 11344 KB Output is correct
9 Correct 4 ms 12624 KB Output is correct
10 Correct 4 ms 11344 KB Output is correct
11 Correct 5 ms 11344 KB Output is correct
12 Correct 4 ms 12880 KB Output is correct
13 Correct 4 ms 13136 KB Output is correct
14 Correct 5 ms 13392 KB Output is correct
15 Correct 7 ms 12344 KB Output is correct
16 Correct 7 ms 13904 KB Output is correct
17 Correct 6 ms 13136 KB Output is correct
18 Correct 7 ms 13340 KB Output is correct
19 Correct 8 ms 13816 KB Output is correct
20 Correct 10 ms 13904 KB Output is correct
21 Correct 7 ms 13136 KB Output is correct
22 Correct 7 ms 13392 KB Output is correct
23 Correct 9 ms 13648 KB Output is correct
24 Correct 7 ms 13924 KB Output is correct

Subtask #3
33.0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Correct 150 ms 44644 KB Output is correct
2 Correct 180 ms 65408 KB Output is correct
3 Correct 229 ms 89456 KB Output is correct
4 Correct 241 ms 108992 KB Output is correct
5 Correct 339 ms 37632 KB Output is correct
6 Correct 604 ms 59836 KB Output is correct
7 Correct 841 ms 75576 KB Output is correct
8 Correct 1195 ms 93696 KB Output is correct
9 Correct 221 ms 39952 KB Output is correct
10 Correct 307 ms 58560 KB Output is correct
11 Correct 382 ms 76988 KB Output is correct
12 Correct 431 ms 94168 KB Output is correct

Subtask #4
44.0 / 44.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 12624 KB Output is correct
2 Correct 4 ms 11344 KB Output is correct
3 Correct 4 ms 11360 KB Output is correct
4 Correct 6 ms 11416 KB Output is correct
5 Correct 8 ms 11344 KB Output is correct
6 Correct 7 ms 11344 KB Output is correct
7 Correct 7 ms 11344 KB Output is correct
8 Correct 5 ms 11344 KB Output is correct
9 Correct 4 ms 12624 KB Output is correct
10 Correct 4 ms 11344 KB Output is correct
11 Correct 5 ms 11344 KB Output is correct
12 Correct 4 ms 12880 KB Output is correct
13 Correct 4 ms 13136 KB Output is correct
14 Correct 5 ms 13392 KB Output is correct
15 Correct 7 ms 12344 KB Output is correct
16 Correct 7 ms 13904 KB Output is correct
17 Correct 6 ms 13136 KB Output is correct
18 Correct 7 ms 13340 KB Output is correct
19 Correct 8 ms 13816 KB Output is correct
20 Correct 10 ms 13904 KB Output is correct
21 Correct 7 ms 13136 KB Output is correct
22 Correct 7 ms 13392 KB Output is correct
23 Correct 9 ms 13648 KB Output is correct
24 Correct 7 ms 13924 KB Output is correct
25 Correct 150 ms 44644 KB Output is correct
26 Correct 180 ms 65408 KB Output is correct
27 Correct 229 ms 89456 KB Output is correct
28 Correct 241 ms 108992 KB Output is correct
29 Correct 339 ms 37632 KB Output is correct
30 Correct 604 ms 59836 KB Output is correct
31 Correct 841 ms 75576 KB Output is correct
32 Correct 1195 ms 93696 KB Output is correct
33 Correct 221 ms 39952 KB Output is correct
34 Correct 307 ms 58560 KB Output is correct
35 Correct 382 ms 76988 KB Output is correct
36 Correct 431 ms 94168 KB Output is correct
37 Correct 155 ms 46664 KB Output is correct
38 Correct 202 ms 68936 KB Output is correct
39 Correct 227 ms 91976 KB Output is correct
40 Correct 259 ms 113228 KB Output is correct
41 Correct 313 ms 41800 KB Output is correct
42 Correct 588 ms 64184 KB Output is correct
43 Correct 865 ms 79688 KB Output is correct
44 Correct 1185 ms 96604 KB Output is correct
45 Correct 186 ms 40304 KB Output is correct
46 Correct 257 ms 59944 KB Output is correct
47 Correct 362 ms 77896 KB Output is correct
48 Correct 442 ms 95260 KB Output is correct