oj.uz

답안 #1115922

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1115922 2024-11-21T05:08:38 Z _8_8_ Unique Cities (JOI19_ho_t5) C++17
36 / 100
 772 ms 274432 KB 
#include <bits/stdc++.h>
    
using namespace std;
    
typedef long long ll;

const int  N = 2e5 + 12, MOD = (int)1e9 + 7;

int n, m, a[N];
bool vis[N], timer;
vector<int> g[N], gt[N];
vector<vector<int>> dist;
bool zap;
int f(int d) {
    vector<int> D(n + 1, 0);
    timer = 1;
    for(int i = 1; i <= n; i++) {
        vis[i] = 0;
    }
    vis[d] = timer;
    int lst = d;
    queue<int> q;
    q.push(d);
    while(!q.empty()) {
        int v = q.front();
        lst = v;
        q.pop();
        for(int to : g[v]) {
            if(vis[to] != timer) {
                D[to] = D[v] + 1;
                q.push(to);
                vis[to] = timer;
            }
        }
    }
    dist.push_back(D);
    return lst;
}
int dep[N], mxd[N], res[N], d, d1, o, cr;
void dfs(int v, int pr = -1) {
    mxd[v] = dep[v];
    for(int to:g[v]) if(to != pr) {
        gt[v].push_back(to);
        dep[to] = dep[v] + 1;
        dfs(to, v);
        mxd[v] = max(mxd[v], mxd[to]);
    }
    for(int i = 0; i < (int)gt[v].size(); i++) {
        if(mxd[gt[v][i]] == mxd[v]) {
            swap(gt[v][0], gt[v][i]);
        }
    }
}
int b = 17, it = 0, cur = 0, ver[N];
int up[N][18];
struct node{
    node *l = 0, *r = 0;
    int sum = 0;
    node(){};
    node(int v) {
        sum = v;
    }
    node (node *L, node *R) {
        l = L;
        r = R;
        sum = l->sum + r->sum;
    }
};
using pnode = node *;
pnode tr[N];    
pnode build(int tl = 1, int tr = m) {
    if(tl == tr) {
        return new node();
    }
    int tm = (tl + tr) >> 1;
    return new node(build(tl, tm), build(tm + 1, tr));
}
pnode upd(int pos, pnode v, int tl = 1, int tr = m) {
    if(tl == tr) {
        return new node(1);
    }
    int tm = (tl + tr) >> 1;
    if(pos <= tm) 
        return new node(upd(pos, v->l, tl, tm), v->r);
    return new node(v->l, upd(pos, v->r, tm + 1, tr));
}
void go(int v) {
    if(dist[cr][v] > dist[o][v] || (dist[cr][v] == dist[o][v] && zap)) {
        int f = cur, val = -mxd[v] + dep[v] * 2;
        set<int> r;
        if(dep[ver[f]] >= val) {
            for(int i = b - 1; i >= 0; i--) {
                int nv = ver[up[f][i]];
                if(dep[nv] >= val) {
                    f = up[f][i];
                }
            }
            f = up[f][0];
        }
        res[v] += tr[f]->sum;
    }
    if(gt[v].empty()) return;
    int sz = (int)gt[v].size(), mx1 = dep[v];
    for(int i = 1; i < sz; i++) {
        mx1 = max(mx1, mxd[gt[v][i]]);
    }
    int bf = cur;
    for(int i = 0; i < sz; i++) {
        int to = gt[v][i];
        int mx = dep[v];
        if(i) mx = mxd[gt[v][0]];
        if(i < sz - 1) mx = max(mx, mx1);
        mx -= dep[v];
        if(i == 1) {
            cur = up[cur][0];
        }
        if(i <= 1 && dep[v] - dep[ver[cur]] <= mx) {
            for(int i = b - 1; i >= 0; i--) {
                int nv = up[cur][i];
                if(dep[v] - dep[ver[nv]] <= mx) {
                    cur = nv;
                }
            }
            cur = up[cur][0];
        }
        if(i <= 1) {
            it++;
            ver[it] = v;
            up[it][0] = cur;
            tr[it] = upd(a[v], tr[cur]);
            for(int i = 1; i < b; i++) {
                up[it][i] = up[up[it][i - 1]][i - 1];
            }
            cur = it;
        }
        go(to);
    }
    cur = bf;
}
void solve(int root) {
    it = cur = 0;
    for(int i = 1; i <= n; i++) {
        gt[i].clear();
    }
    ver[0] = 0;
    dep[0] = -(int)1e9;
    tr[0] = build();
    dep[root] = 1;
    dfs(root);

    go(root);

}
void test() {
    cin >> n >> m;
    for(int i = 1; i <= n - 1; i++) {
        int a, b;
        cin >> a >> b;
        g[a].push_back(b);
        g[b].push_back(a);
    }

    for(int i = 1; i <= n; i++) {
        cin >> a[i];
    }
    d = f(1), d1 = f(d);
    f(d1);
    o = 2;cr = 1;
    solve(d);
    zap = 1;
    o = 1;cr = 2;
    solve(d1);
    for(int i = 1; i <= n; i++) {
        cout << res[i] << '\n';
    }

}
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int t = 1; 
    // cin >> t;

    while(t--) 
        test();
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 16720 KB Output is correct
2 Correct 5 ms 18000 KB Output is correct
3 Correct 4 ms 17744 KB Output is correct
4 Correct 6 ms 18012 KB Output is correct
5 Correct 5 ms 17188 KB Output is correct
6 Correct 5 ms 17500 KB Output is correct
7 Correct 5 ms 17232 KB Output is correct
8 Correct 5 ms 17232 KB Output is correct
9 Correct 5 ms 17488 KB Output is correct
10 Correct 5 ms 17232 KB Output is correct
11 Correct 4 ms 17248 KB Output is correct
12 Correct 4 ms 16976 KB Output is correct
13 Correct 6 ms 17488 KB Output is correct
14 Correct 4 ms 16976 KB Output is correct
15 Correct 5 ms 17656 KB Output is correct
16 Correct 4 ms 17156 KB Output is correct
17 Correct 4 ms 17400 KB Output is correct
18 Correct 4 ms 17232 KB Output is correct
19 Correct 6 ms 18000 KB Output is correct
20 Correct 7 ms 18776 KB Output is correct
21 Correct 7 ms 18512 KB Output is correct
22 Correct 6 ms 17912 KB Output is correct
23 Correct 7 ms 18256 KB Output is correct
24 Correct 6 ms 18000 KB Output is correct
25 Correct 6 ms 18000 KB Output is correct
26 Correct 4 ms 17232 KB Output is correct
27 Correct 7 ms 18768 KB Output is correct
28 Correct 7 ms 18424 KB Output is correct
29 Correct 7 ms 18528 KB Output is correct
30 Correct 4 ms 16976 KB Output is correct
31 Correct 5 ms 17852 KB Output is correct
32 Correct 6 ms 18256 KB Output is correct

Subtask #2
32.0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 119 ms 38896 KB Output is correct
2 Correct 175 ms 51896 KB Output is correct
3 Correct 30 ms 24136 KB Output is correct
4 Correct 210 ms 53308 KB Output is correct
5 Correct 338 ms 76088 KB Output is correct
6 Correct 285 ms 65840 KB Output is correct
7 Correct 184 ms 49332 KB Output is correct
8 Correct 206 ms 55112 KB Output is correct
9 Correct 209 ms 54072 KB Output is correct
10 Correct 206 ms 54080 KB Output is correct
11 Correct 85 ms 31156 KB Output is correct
12 Correct 325 ms 66616 KB Output is correct
13 Correct 238 ms 58804 KB Output is correct
14 Correct 247 ms 59396 KB Output is correct
15 Correct 82 ms 29100 KB Output is correct
16 Correct 254 ms 62004 KB Output is correct
17 Correct 232 ms 60304 KB Output is correct

Subtask #3
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 493 ms 213952 KB Output is correct
2 Runtime error 772 ms 274432 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 16720 KB Output is correct
2 Correct 5 ms 18000 KB Output is correct
3 Correct 4 ms 17744 KB Output is correct
4 Correct 6 ms 18012 KB Output is correct
5 Correct 5 ms 17188 KB Output is correct
6 Correct 5 ms 17500 KB Output is correct
7 Correct 5 ms 17232 KB Output is correct
8 Correct 5 ms 17232 KB Output is correct
9 Correct 5 ms 17488 KB Output is correct
10 Correct 5 ms 17232 KB Output is correct
11 Correct 4 ms 17248 KB Output is correct
12 Correct 4 ms 16976 KB Output is correct
13 Correct 6 ms 17488 KB Output is correct
14 Correct 4 ms 16976 KB Output is correct
15 Correct 5 ms 17656 KB Output is correct
16 Correct 4 ms 17156 KB Output is correct
17 Correct 4 ms 17400 KB Output is correct
18 Correct 4 ms 17232 KB Output is correct
19 Correct 6 ms 18000 KB Output is correct
20 Correct 7 ms 18776 KB Output is correct
21 Correct 7 ms 18512 KB Output is correct
22 Correct 6 ms 17912 KB Output is correct
23 Correct 7 ms 18256 KB Output is correct
24 Correct 6 ms 18000 KB Output is correct
25 Correct 6 ms 18000 KB Output is correct
26 Correct 4 ms 17232 KB Output is correct
27 Correct 7 ms 18768 KB Output is correct
28 Correct 7 ms 18424 KB Output is correct
29 Correct 7 ms 18528 KB Output is correct
30 Correct 4 ms 16976 KB Output is correct
31 Correct 5 ms 17852 KB Output is correct
32 Correct 6 ms 18256 KB Output is correct
33 Correct 119 ms 38896 KB Output is correct
34 Correct 175 ms 51896 KB Output is correct
35 Correct 30 ms 24136 KB Output is correct
36 Correct 210 ms 53308 KB Output is correct
37 Correct 338 ms 76088 KB Output is correct
38 Correct 285 ms 65840 KB Output is correct
39 Correct 184 ms 49332 KB Output is correct
40 Correct 206 ms 55112 KB Output is correct
41 Correct 209 ms 54072 KB Output is correct
42 Correct 206 ms 54080 KB Output is correct
43 Correct 85 ms 31156 KB Output is correct
44 Correct 325 ms 66616 KB Output is correct
45 Correct 238 ms 58804 KB Output is correct
46 Correct 247 ms 59396 KB Output is correct
47 Correct 82 ms 29100 KB Output is correct
48 Correct 254 ms 62004 KB Output is correct
49 Correct 232 ms 60304 KB Output is correct
50 Correct 493 ms 213952 KB Output is correct
51 Runtime error 772 ms 274432 KB Execution killed with signal 9
52 Halted 0 ms 0 KB -