oj.uz

답안 #997225

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
997225 2024-06-11T21:13:19 Z vladilius Jail (JOI22_jail) C++17
61 / 100
 5000 ms 39448 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
#define pb push_back
#define ff first
#define ss second
#define ins insert

struct FT{
    vector<int> bit;
    int n;
    FT(int ns){
        n = ns;
        bit.resize(n + 1);
    }
    void add(int v, int k){
        while (v <= n){
            bit[v] += k;
            v |= (v + 1);
        }
    }
    void upd(int l, int r, int x){
        add(l, x);
        add(r + 1, -x);
    }
    int get(int v){
        int out = 0;
        while (v > 0){
            out += bit[v];
            v = (v & (v + 1)) - 1;
        }
        return out;
    }
};

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    int tt; cin>>tt;
    while (tt--){
        int n; cin>>n;
        vector<int> g[n + 1];
        for (int i = 1; i < n; i++){
            int a, b; cin>>a>>b;
            g[a].pb(b);
            g[b].pb(a);
        }
        
        const int lg = log2(n);
        vector<vector<int>> pw(n + 1, vector<int>(lg + 1));
        vector<int> tin(n + 1), tout(n + 1);
        int timer = 0;
        function<void(int, int)> fill = [&](int v, int pr){
            tin[v] = ++timer;
            pw[v][0] = pr;
            for (int i = 1; i <= lg; i++){
                pw[v][i] = pw[pw[v][i - 1]][i - 1];
            }
            for (int i: g[v]){
                if (i == pr) continue;
                fill(i, v);
            }
            tout[v] = timer;
        };
        fill(1, 1);
        
        auto check = [&](int x, int y){
            return (tin[x] <= tin[y] && tout[x] >= tout[y]);
        };
        
        int m; cin>>m;
        vector<int> s(m + 1), t(m + 1);
        for (int i = 1; i <= m; i++){
            cin>>s[i]>>t[i];
        }
        
        auto lca = [&](int x, int y){
            if (check(x, y)) return x;
            if (check(y, x)) return y;
            for (int i = lg; i >= 0; i--){
                if (!check(pw[x][i], y)){
                    x = pw[x][i];
                }
            }
            return pw[x][0];
        };
        
        auto on = [&](int x, int y, int z){
            int l = lca(x, y);
            return check(l, z) && (check(z, x) || check(z, y));
        };
        
        vector<int> f[m + 1];
        bool out = 1;
        for (int i = 1; i <= m; i++){
            for (int j = 1; j <= m; j++){
                if (i == j) continue;
                bool b1 = on(s[i], t[i], s[j]), b2 = on(s[i], t[i], t[j]);
                if (b1 && b2){
                    out = 0;
                    break;
                }
                if (b1) f[i].pb(j);
                else if (b2) f[j].pb(i);
            }
            if (!out) break;
        }
        if (!out){
            cout<<"No"<<"\n";
            continue;
        }

        vector<bool> used(m + 1), seen(m + 1);
        vector<int> order;
        function<void(int)> dfs = [&](int v){
            if (!out) return;
            used[v] = seen[v] = 1;
            for (int i: f[v]){
                if (used[i]){
                    if (seen[i]){
                        out = 0;
                        return;
                    }
                    continue;
                }
                dfs(i);
            }
            order.pb(v);
            seen[v] = 0;
        };
        for (int i = 1; i <= m; i++){
            if (!used[i]){
                dfs(i);
            }
        }
        
        cout<<((out) ? "Yes" : "No")<<"\n";
    }
}

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 14 ms 484 KB Output is correct
5 Correct 19 ms 480 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 3 ms 348 KB Output is correct
9 Correct 39 ms 3004 KB Output is correct
10 Correct 43 ms 32592 KB Output is correct
11 Correct 4 ms 348 KB Output is correct
12 Correct 26 ms 484 KB Output is correct
13 Execution timed out 5085 ms 39448 KB Time limit exceeded
14 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 2 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct

Subtask #3
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 2 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 2 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct

Subtask #4
28.0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 2 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 2 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 2 ms 604 KB Output is correct
30 Correct 2 ms 348 KB Output is correct
31 Correct 2 ms 344 KB Output is correct
32 Correct 3 ms 348 KB Output is correct
33 Correct 1 ms 532 KB Output is correct
34 Correct 3 ms 544 KB Output is correct
35 Correct 3 ms 348 KB Output is correct
36 Correct 6 ms 348 KB Output is correct
37 Correct 4 ms 348 KB Output is correct

Subtask #5
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 2 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 2 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 2 ms 604 KB Output is correct
30 Correct 2 ms 348 KB Output is correct
31 Correct 2 ms 344 KB Output is correct
32 Correct 3 ms 348 KB Output is correct
33 Correct 1 ms 532 KB Output is correct
34 Correct 3 ms 544 KB Output is correct
35 Correct 3 ms 348 KB Output is correct
36 Correct 6 ms 348 KB Output is correct
37 Correct 4 ms 348 KB Output is correct
38 Correct 40 ms 4296 KB Output is correct
39 Correct 44 ms 34116 KB Output is correct
40 Correct 108 ms 2740 KB Output is correct
41 Correct 182 ms 2488 KB Output is correct
42 Correct 126 ms 2740 KB Output is correct
43 Correct 37 ms 2496 KB Output is correct
44 Correct 67 ms 864 KB Output is correct
45 Correct 61 ms 21584 KB Output is correct
46 Correct 72 ms 21668 KB Output is correct
47 Correct 59 ms 27252 KB Output is correct
48 Correct 58 ms 27216 KB Output is correct
49 Correct 46 ms 21700 KB Output is correct
50 Correct 58 ms 21848 KB Output is correct
51 Correct 45 ms 23492 KB Output is correct
52 Correct 41 ms 23376 KB Output is correct
53 Correct 116 ms 1880 KB Output is correct
54 Correct 63 ms 21596 KB Output is correct

Subtask #6
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 5 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 6 ms 348 KB Output is correct
13 Correct 25 ms 968 KB Output is correct
14 Correct 44 ms 1104 KB Output is correct
15 Correct 35 ms 1108 KB Output is correct
16 Correct 4838 ms 22368 KB Output is correct
17 Correct 4731 ms 24404 KB Output is correct
18 Execution timed out 5053 ms 27016 KB Time limit exceeded
19 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 14 ms 484 KB Output is correct
5 Correct 19 ms 480 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 3 ms 348 KB Output is correct
9 Correct 39 ms 3004 KB Output is correct
10 Correct 43 ms 32592 KB Output is correct
11 Correct 4 ms 348 KB Output is correct
12 Correct 26 ms 484 KB Output is correct
13 Execution timed out 5085 ms 39448 KB Time limit exceeded
14 Halted 0 ms 0 KB -