oj.uz

Submission #960824

# Submission time Handle Problem Language Result Execution time Memory
960824 2024-04-11T05:40:12 Z Trisanu_Das Jail (JOI22_jail) C++17
77 / 100
 3109 ms 1048576 KB 
#include<bits/stdc++.h>
using namespace std;
bool f; int T;
void dfs(int n, vector<int> g[], int p, int d[], int pa[]){
    pa[n] = p;
    d[n] = d[p]+1;
    for(int c : g[n]){
        if(c == p) continue;
        dfs(c, g, n, d, pa);
    }
}
struct node {
    vector<node*> l;
    bool v = false, c = false;
};
bool ans;
void dfs(node* n){
    n->v = n->c = true;
    for(node* c : n->l){
        if(!ans) break;
        if(c->c){
            ans = false;
            break;
        }
        if(!c->v) dfs(c);
    }
    n->c = false;
}
void solve(){
    bool s1 = true;
    int n,m;cin >> n;
    vector<int> g[n+1];
    for(int i = 1;i < n;i++){
        int u, v;cin >> u >> v;
        s1 &= (u == i) && (v == i+1);
        g[u].push_back(v);
        g[v].push_back(u);
    }
    if(s1){
        cin >> m;
        set<int> fore, bace;
        pair<int, int> ra[m];
        bool ok = true;
        for(int i = 0;i < m;i++){
            cin >> ra[i].first >> ra[i].second;
            if(ra[i].first < ra[i].second) {
                fore.insert(ra[i].second);
                fore.insert(ra[i].first);
                auto p = bace.lower_bound(ra[i].first);
                if(p != bace.end() && *p <= ra[i].second) ok = false;
            }
            else {
                bace.insert(ra[i].second);
                bace.insert(ra[i].first);
                swap(ra[i].first, ra[i].second);
                auto p = fore.lower_bound(ra[i].first);
                if(p != fore.end() && *p <= ra[i].second) ok = false;
            }
        }
        if(!ok){
            cout << "No\n";
            return;
        }
        sort(ra, ra+m, [](const auto& a, const auto& b){
            if(a.first != b.first) return a.first < b.first;
            return a.second > b.second;
        });
        int R = -1;
        for(auto p : ra){
            if(R >= p.second){
                cout << "No\n";
                return;
            }
            R = max(R, p.second);
        }
        cout << "Yes\n";
        return;
    }
    int d[n+1], p[n+1];d[0] = 0;
    dfs(1, g, 0, d, p);
    cin >> m;
    int s[m], t[m];
    int sn[n+1], tn[n+1];
    fill(sn+1, sn+n+1, -1);fill(tn+1, tn+n+1, -1);
    for(int i = 0;i < m;i++){
        cin >> s[i] >> t[i];
        sn[s[i]] = i;
        tn[t[i]] = i;
    }
    node mg[m];
    for(int i = 0;i < m;i++){
        vector<int> path;
        if(d[s[i]] < d[t[i]]) swap(s[i], t[i]);
        while(d[s[i]] > d[t[i]]){
            path.push_back(s[i]);
            s[i] = p[s[i]];
        }
        while(true){
            path.push_back(s[i]);
            if(s[i] == t[i]) break;
            path.push_back(t[i]);
            s[i] = p[s[i]];t[i] = p[t[i]];
        }
        for(int _ : path){
            if(sn[_] != -1 && sn[_] != i) mg[i].l.push_back(&mg[sn[_]]);
            if(tn[_] != -1 && tn[_] != i) mg[tn[_]].l.push_back(&mg[i]);
        }
    }
    ans = true;
    for(int i = 0;i < m && ans;i++){
        if(!mg[i].v) dfs(&mg[i]);
    }
    if(ans)cout << "Yes\n";
    else cout << "No\n";
}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int t;cin >> t;
    while(t--) solve();
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 504 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 8 ms 604 KB Output is correct
5 Correct 17 ms 1208 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 356 KB Output is correct
8 Correct 3 ms 348 KB Output is correct
9 Correct 22 ms 1880 KB Output is correct
10 Correct 26 ms 8280 KB Output is correct
11 Correct 5 ms 612 KB Output is correct
12 Correct 25 ms 1428 KB Output is correct
13 Correct 47 ms 13980 KB Output is correct
14 Correct 49 ms 13904 KB Output is correct
15 Correct 57 ms 13768 KB Output is correct
16 Correct 130 ms 20184 KB Output is correct
17 Correct 57 ms 15188 KB Output is correct
18 Correct 72 ms 16320 KB Output is correct
19 Correct 50 ms 15188 KB Output is correct
20 Correct 49 ms 15180 KB Output is correct
21 Correct 52 ms 15184 KB Output is correct
22 Correct 57 ms 15252 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory 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 344 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 2 ms 468 KB Output is correct
7 Correct 2 ms 348 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 724 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 344 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory 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 344 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 2 ms 468 KB Output is correct
7 Correct 2 ms 348 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 724 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 456 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 2 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 408 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 352 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory 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 344 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 2 ms 468 KB Output is correct
7 Correct 2 ms 348 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 724 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 456 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 2 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 408 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 352 KB Output is correct
29 Correct 2 ms 348 KB Output is correct
30 Correct 2 ms 348 KB Output is correct
31 Correct 2 ms 356 KB Output is correct
32 Correct 2 ms 360 KB Output is correct
33 Correct 2 ms 356 KB Output is correct
34 Correct 2 ms 356 KB Output is correct
35 Correct 3 ms 612 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 2 ms 860 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory 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 344 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 2 ms 468 KB Output is correct
7 Correct 2 ms 348 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 724 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 456 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 2 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 408 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 352 KB Output is correct
29 Correct 2 ms 348 KB Output is correct
30 Correct 2 ms 348 KB Output is correct
31 Correct 2 ms 356 KB Output is correct
32 Correct 2 ms 360 KB Output is correct
33 Correct 2 ms 356 KB Output is correct
34 Correct 2 ms 356 KB Output is correct
35 Correct 3 ms 612 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 2 ms 860 KB Output is correct
38 Correct 22 ms 1848 KB Output is correct
39 Correct 25 ms 8296 KB Output is correct
40 Correct 57 ms 3184 KB Output is correct
41 Correct 27 ms 1880 KB Output is correct
42 Correct 54 ms 2880 KB Output is correct
43 Correct 21 ms 2140 KB Output is correct
44 Correct 9 ms 864 KB Output is correct
45 Correct 31 ms 10208 KB Output is correct
46 Correct 31 ms 10336 KB Output is correct
47 Correct 97 ms 14564 KB Output is correct
48 Correct 100 ms 14704 KB Output is correct
49 Correct 36 ms 10320 KB Output is correct
50 Correct 47 ms 10320 KB Output is correct
51 Correct 36 ms 10812 KB Output is correct
52 Correct 29 ms 10912 KB Output is correct
53 Correct 9 ms 1116 KB Output is correct
54 Correct 45 ms 10500 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 0 ms 348 KB Output is correct
5 Correct 5 ms 604 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 1 ms 348 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 21 ms 836 KB Output is correct
14 Correct 27 ms 1116 KB Output is correct
15 Correct 25 ms 976 KB Output is correct
16 Correct 42 ms 11088 KB Output is correct
17 Correct 86 ms 22744 KB Output is correct
18 Correct 208 ms 61932 KB Output is correct
19 Correct 39 ms 11600 KB Output is correct
20 Correct 40 ms 11600 KB Output is correct
21 Correct 43 ms 11604 KB Output is correct
22 Correct 89 ms 24264 KB Output is correct
23 Correct 70 ms 24776 KB Output is correct
24 Correct 69 ms 24524 KB Output is correct
25 Correct 67 ms 24768 KB Output is correct
26 Correct 74 ms 24536 KB Output is correct
27 Correct 75 ms 23256 KB Output is correct
28 Correct 90 ms 24264 KB Output is correct
29 Correct 76 ms 22212 KB Output is correct
30 Correct 50 ms 16820 KB Output is correct
31 Correct 55 ms 17360 KB Output is correct
32 Correct 52 ms 16848 KB Output is correct
33 Correct 52 ms 17128 KB Output is correct

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 504 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 8 ms 604 KB Output is correct
5 Correct 17 ms 1208 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 356 KB Output is correct
8 Correct 3 ms 348 KB Output is correct
9 Correct 22 ms 1880 KB Output is correct
10 Correct 26 ms 8280 KB Output is correct
11 Correct 5 ms 612 KB Output is correct
12 Correct 25 ms 1428 KB Output is correct
13 Correct 47 ms 13980 KB Output is correct
14 Correct 49 ms 13904 KB Output is correct
15 Correct 57 ms 13768 KB Output is correct
16 Correct 130 ms 20184 KB Output is correct
17 Correct 57 ms 15188 KB Output is correct
18 Correct 72 ms 16320 KB Output is correct
19 Correct 50 ms 15188 KB Output is correct
20 Correct 49 ms 15180 KB Output is correct
21 Correct 52 ms 15184 KB Output is correct
22 Correct 57 ms 15252 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 348 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 2 ms 468 KB Output is correct
29 Correct 2 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 2 ms 724 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 468 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 1 ms 344 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 1 ms 348 KB Output is correct
41 Correct 0 ms 456 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 2 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 1 ms 344 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 1 ms 408 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 1 ms 352 KB Output is correct
51 Correct 2 ms 348 KB Output is correct
52 Correct 2 ms 348 KB Output is correct
53 Correct 2 ms 356 KB Output is correct
54 Correct 2 ms 360 KB Output is correct
55 Correct 2 ms 356 KB Output is correct
56 Correct 2 ms 356 KB Output is correct
57 Correct 3 ms 612 KB Output is correct
58 Correct 1 ms 348 KB Output is correct
59 Correct 2 ms 860 KB Output is correct
60 Correct 22 ms 1848 KB Output is correct
61 Correct 25 ms 8296 KB Output is correct
62 Correct 57 ms 3184 KB Output is correct
63 Correct 27 ms 1880 KB Output is correct
64 Correct 54 ms 2880 KB Output is correct
65 Correct 21 ms 2140 KB Output is correct
66 Correct 9 ms 864 KB Output is correct
67 Correct 31 ms 10208 KB Output is correct
68 Correct 31 ms 10336 KB Output is correct
69 Correct 97 ms 14564 KB Output is correct
70 Correct 100 ms 14704 KB Output is correct
71 Correct 36 ms 10320 KB Output is correct
72 Correct 47 ms 10320 KB Output is correct
73 Correct 36 ms 10812 KB Output is correct
74 Correct 29 ms 10912 KB Output is correct
75 Correct 9 ms 1116 KB Output is correct
76 Correct 45 ms 10500 KB Output is correct
77 Correct 1 ms 348 KB Output is correct
78 Correct 0 ms 348 KB Output is correct
79 Correct 1 ms 348 KB Output is correct
80 Correct 0 ms 348 KB Output is correct
81 Correct 5 ms 604 KB Output is correct
82 Correct 1 ms 348 KB Output is correct
83 Correct 1 ms 348 KB Output is correct
84 Correct 0 ms 348 KB Output is correct
85 Correct 0 ms 348 KB Output is correct
86 Correct 0 ms 348 KB Output is correct
87 Correct 1 ms 348 KB Output is correct
88 Correct 1 ms 468 KB Output is correct
89 Correct 21 ms 836 KB Output is correct
90 Correct 27 ms 1116 KB Output is correct
91 Correct 25 ms 976 KB Output is correct
92 Correct 42 ms 11088 KB Output is correct
93 Correct 86 ms 22744 KB Output is correct
94 Correct 208 ms 61932 KB Output is correct
95 Correct 39 ms 11600 KB Output is correct
96 Correct 40 ms 11600 KB Output is correct
97 Correct 43 ms 11604 KB Output is correct
98 Correct 89 ms 24264 KB Output is correct
99 Correct 70 ms 24776 KB Output is correct
100 Correct 69 ms 24524 KB Output is correct
101 Correct 67 ms 24768 KB Output is correct
102 Correct 74 ms 24536 KB Output is correct
103 Correct 75 ms 23256 KB Output is correct
104 Correct 90 ms 24264 KB Output is correct
105 Correct 76 ms 22212 KB Output is correct
106 Correct 50 ms 16820 KB Output is correct
107 Correct 55 ms 17360 KB Output is correct
108 Correct 52 ms 16848 KB Output is correct
109 Correct 52 ms 17128 KB Output is correct
110 Correct 33 ms 1360 KB Output is correct
111 Correct 20 ms 1112 KB Output is correct
112 Runtime error 3109 ms 1048576 KB Execution killed with signal 9
113 Halted 0 ms 0 KB -