oj.uz

Submission #1102780

# Submission time Handle Problem Language Result Execution time Memory
1102780 2024-10-18T21:24:53 Z Bula Jail (JOI22_jail) C++17
77 / 100
 5000 ms 514768 KB 
#include <bits/stdc++.h>
using namespace std;

main(){
	int tt = 1; cin >> tt;
	while(tt--){
		int n;
		cin >> n;
		int c = 1;
		vector<int> adj[n + 1];
		for(int i = 1; i <= n - 1; i++){
			int x, y;
			cin >> x >> y;
			adj[x].push_back(y);
			adj[y].push_back(x);
			if(x != i || y != i + 1) c = 0;
		}
		vector<int> par(n + 1), d(n + 1);
		function<void(int, int)> dfs = [&](int v, int p){
			par[v] = p; d[v] = d[p] + 1;
			for(auto x : adj[v]){
				if(x == p) continue;
				dfs(x, v);
			}
		};
		dfs(1, 0);
		int q;
		cin >> q;
		vector<pair<int, int>> A, B;
		vector<int> a(q + 1), b(q + 1), g[n + 1], s[n + 1];
		for(int i = 1; i <= q; i++){
			cin >> a[i] >> b[i];
			g[b[i]].push_back(i);
			s[a[i]].push_back(i);
			A.push_back({a[i], i});
			B.push_back({b[i], i});
		}
		int ok = 1;
		if(c == 1){
			sort(A.begin(), A.end());
			sort(B.begin(), B.end());
			for(int i = 0; i < q; i++){
				if(A[i].second != B[i].second) ok = 0;
			}
		}else{
			vector<int> G[q + 1], in(q + 1);
			for(int i = 1; i <= q; i++){
				vector<int> m(q + 1);
				int x = a[i], y = b[i];
				while(x != y){
					if(d[x] < d[y]) swap(x, y);
					for(auto u : g[x]){
						if(u == i) continue;
						G[i].push_back(u);
						in[u]++;
						m[u]++;
						if(m[u] == 2) ok = 0;
					}
					for(auto u : s[x]){
						if(u == i) continue;
						G[u].push_back(i);
						in[i]++;
						m[u]++;
						if(m[u] == 2) ok = 0;
					}
					x = par[x];
				}
				for(auto u : g[x]){
					if(u == i) continue;
					G[i].push_back(u);
					in[u]++;
					m[u]++;
					if(m[u] == 2) ok = 0;
				}
				for(auto u : s[x]){
					if(u == i) continue;
					G[u].push_back(i);
					in[i]++;
					m[u]++;
					if(m[u] == 2) ok = 0;
				}
			}
			queue<int> Q;
			for(int i = 1; i <= q; i++){
				if(in[i] == 0) Q.push(i);
			}
			vector<int> p;
			while(!Q.empty()){
				int v = Q.front();
				Q.pop();
				p.push_back(v);
				for(auto x : G[v]){
					in[x]--;
					if(in[x] == 0) Q.push(x);
				}
			}
			if(p.size() != q) ok = 0;
		}
		cout << (ok ? "Yes" : "No") << '\n';
	}
}

Compilation message

jail.cpp:4:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    4 | main(){
      | ^~~~
jail.cpp: In function 'int main()':
jail.cpp:97:16: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   97 |    if(p.size() != q) ok = 0;
      |       ~~~~~~~~~^~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 17 ms 692 KB Output is correct
5 Correct 37 ms 336 KB Output is correct
6 Correct 3 ms 336 KB Output is correct
7 Correct 3 ms 336 KB Output is correct
8 Correct 3 ms 336 KB Output is correct
9 Correct 64 ms 1112 KB Output is correct
10 Correct 62 ms 18360 KB Output is correct
11 Correct 10 ms 336 KB Output is correct
12 Correct 45 ms 452 KB Output is correct
13 Correct 88 ms 21504 KB Output is correct
14 Correct 87 ms 21564 KB Output is correct
15 Correct 109 ms 21612 KB Output is correct
16 Correct 150 ms 30356 KB Output is correct
17 Correct 105 ms 24616 KB Output is correct
18 Correct 117 ms 30300 KB Output is correct
19 Correct 87 ms 24636 KB Output is correct
20 Correct 90 ms 24440 KB Output is correct
21 Correct 99 ms 24636 KB Output is correct
22 Correct 90 ms 24604 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 2 ms 336 KB Output is correct
4 Correct 2 ms 336 KB Output is correct
5 Correct 2 ms 336 KB Output is correct
6 Correct 4 ms 336 KB Output is correct
7 Correct 4 ms 336 KB Output is correct
8 Correct 3 ms 336 KB Output is correct
9 Correct 2 ms 336 KB Output is correct
10 Correct 4 ms 336 KB Output is correct
11 Correct 2 ms 336 KB Output is correct
12 Correct 2 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 2 ms 336 KB Output is correct
4 Correct 2 ms 336 KB Output is correct
5 Correct 2 ms 336 KB Output is correct
6 Correct 4 ms 336 KB Output is correct
7 Correct 4 ms 336 KB Output is correct
8 Correct 3 ms 336 KB Output is correct
9 Correct 2 ms 336 KB Output is correct
10 Correct 4 ms 336 KB Output is correct
11 Correct 2 ms 336 KB Output is correct
12 Correct 2 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 568 KB Output is correct
16 Correct 3 ms 336 KB Output is correct
17 Correct 2 ms 336 KB Output is correct
18 Correct 3 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 2 ms 336 KB Output is correct
21 Correct 3 ms 336 KB Output is correct
22 Correct 2 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 2 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 2 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 2 ms 336 KB Output is correct
4 Correct 2 ms 336 KB Output is correct
5 Correct 2 ms 336 KB Output is correct
6 Correct 4 ms 336 KB Output is correct
7 Correct 4 ms 336 KB Output is correct
8 Correct 3 ms 336 KB Output is correct
9 Correct 2 ms 336 KB Output is correct
10 Correct 4 ms 336 KB Output is correct
11 Correct 2 ms 336 KB Output is correct
12 Correct 2 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 568 KB Output is correct
16 Correct 3 ms 336 KB Output is correct
17 Correct 2 ms 336 KB Output is correct
18 Correct 3 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 2 ms 336 KB Output is correct
21 Correct 3 ms 336 KB Output is correct
22 Correct 2 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 2 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 2 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 3 ms 508 KB Output is correct
30 Correct 3 ms 336 KB Output is correct
31 Correct 3 ms 336 KB Output is correct
32 Correct 3 ms 336 KB Output is correct
33 Correct 3 ms 336 KB Output is correct
34 Correct 3 ms 500 KB Output is correct
35 Correct 4 ms 336 KB Output is correct
36 Correct 2 ms 336 KB Output is correct
37 Correct 2 ms 336 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 2 ms 336 KB Output is correct
4 Correct 2 ms 336 KB Output is correct
5 Correct 2 ms 336 KB Output is correct
6 Correct 4 ms 336 KB Output is correct
7 Correct 4 ms 336 KB Output is correct
8 Correct 3 ms 336 KB Output is correct
9 Correct 2 ms 336 KB Output is correct
10 Correct 4 ms 336 KB Output is correct
11 Correct 2 ms 336 KB Output is correct
12 Correct 2 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 568 KB Output is correct
16 Correct 3 ms 336 KB Output is correct
17 Correct 2 ms 336 KB Output is correct
18 Correct 3 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 2 ms 336 KB Output is correct
21 Correct 3 ms 336 KB Output is correct
22 Correct 2 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 2 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 2 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 3 ms 508 KB Output is correct
30 Correct 3 ms 336 KB Output is correct
31 Correct 3 ms 336 KB Output is correct
32 Correct 3 ms 336 KB Output is correct
33 Correct 3 ms 336 KB Output is correct
34 Correct 3 ms 500 KB Output is correct
35 Correct 4 ms 336 KB Output is correct
36 Correct 2 ms 336 KB Output is correct
37 Correct 2 ms 336 KB Output is correct
38 Correct 46 ms 1104 KB Output is correct
39 Correct 66 ms 17232 KB Output is correct
40 Correct 94 ms 1636 KB Output is correct
41 Correct 49 ms 1176 KB Output is correct
42 Correct 75 ms 1700 KB Output is correct
43 Correct 43 ms 1104 KB Output is correct
44 Correct 14 ms 592 KB Output is correct
45 Correct 73 ms 13520 KB Output is correct
46 Correct 71 ms 13640 KB Output is correct
47 Correct 103 ms 13636 KB Output is correct
48 Correct 110 ms 13644 KB Output is correct
49 Correct 71 ms 13640 KB Output is correct
50 Correct 67 ms 13656 KB Output is correct
51 Correct 59 ms 13388 KB Output is correct
52 Correct 64 ms 13640 KB Output is correct
53 Correct 14 ms 1104 KB Output is correct
54 Correct 103 ms 13512 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 11 ms 336 KB Output is correct
6 Correct 2 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 3 ms 336 KB Output is correct
13 Correct 32 ms 336 KB Output is correct
14 Correct 52 ms 336 KB Output is correct
15 Correct 39 ms 504 KB Output is correct
16 Correct 81 ms 15176 KB Output is correct
17 Correct 396 ms 25916 KB Output is correct
18 Correct 1462 ms 51948 KB Output is correct
19 Correct 112 ms 16448 KB Output is correct
20 Correct 100 ms 16448 KB Output is correct
21 Correct 120 ms 16448 KB Output is correct
22 Correct 340 ms 26556 KB Output is correct
23 Correct 335 ms 27048 KB Output is correct
24 Correct 327 ms 26936 KB Output is correct
25 Correct 324 ms 27052 KB Output is correct
26 Correct 333 ms 26936 KB Output is correct
27 Correct 1254 ms 32508 KB Output is correct
28 Correct 1258 ms 31844 KB Output is correct
29 Correct 1194 ms 31872 KB Output is correct
30 Correct 331 ms 23288 KB Output is correct
31 Correct 311 ms 22716 KB Output is correct
32 Correct 339 ms 22888 KB Output is correct
33 Correct 350 ms 22680 KB Output is correct

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 17 ms 692 KB Output is correct
5 Correct 37 ms 336 KB Output is correct
6 Correct 3 ms 336 KB Output is correct
7 Correct 3 ms 336 KB Output is correct
8 Correct 3 ms 336 KB Output is correct
9 Correct 64 ms 1112 KB Output is correct
10 Correct 62 ms 18360 KB Output is correct
11 Correct 10 ms 336 KB Output is correct
12 Correct 45 ms 452 KB Output is correct
13 Correct 88 ms 21504 KB Output is correct
14 Correct 87 ms 21564 KB Output is correct
15 Correct 109 ms 21612 KB Output is correct
16 Correct 150 ms 30356 KB Output is correct
17 Correct 105 ms 24616 KB Output is correct
18 Correct 117 ms 30300 KB Output is correct
19 Correct 87 ms 24636 KB Output is correct
20 Correct 90 ms 24440 KB Output is correct
21 Correct 99 ms 24636 KB Output is correct
22 Correct 90 ms 24604 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 2 ms 336 KB Output is correct
26 Correct 2 ms 336 KB Output is correct
27 Correct 2 ms 336 KB Output is correct
28 Correct 4 ms 336 KB Output is correct
29 Correct 4 ms 336 KB Output is correct
30 Correct 3 ms 336 KB Output is correct
31 Correct 2 ms 336 KB Output is correct
32 Correct 4 ms 336 KB Output is correct
33 Correct 2 ms 336 KB Output is correct
34 Correct 2 ms 336 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 1 ms 336 KB Output is correct
37 Correct 1 ms 568 KB Output is correct
38 Correct 3 ms 336 KB Output is correct
39 Correct 2 ms 336 KB Output is correct
40 Correct 3 ms 336 KB Output is correct
41 Correct 1 ms 336 KB Output is correct
42 Correct 2 ms 336 KB Output is correct
43 Correct 3 ms 336 KB Output is correct
44 Correct 2 ms 336 KB Output is correct
45 Correct 1 ms 336 KB Output is correct
46 Correct 1 ms 336 KB Output is correct
47 Correct 2 ms 336 KB Output is correct
48 Correct 1 ms 336 KB Output is correct
49 Correct 2 ms 336 KB Output is correct
50 Correct 1 ms 336 KB Output is correct
51 Correct 3 ms 508 KB Output is correct
52 Correct 3 ms 336 KB Output is correct
53 Correct 3 ms 336 KB Output is correct
54 Correct 3 ms 336 KB Output is correct
55 Correct 3 ms 336 KB Output is correct
56 Correct 3 ms 500 KB Output is correct
57 Correct 4 ms 336 KB Output is correct
58 Correct 2 ms 336 KB Output is correct
59 Correct 2 ms 336 KB Output is correct
60 Correct 46 ms 1104 KB Output is correct
61 Correct 66 ms 17232 KB Output is correct
62 Correct 94 ms 1636 KB Output is correct
63 Correct 49 ms 1176 KB Output is correct
64 Correct 75 ms 1700 KB Output is correct
65 Correct 43 ms 1104 KB Output is correct
66 Correct 14 ms 592 KB Output is correct
67 Correct 73 ms 13520 KB Output is correct
68 Correct 71 ms 13640 KB Output is correct
69 Correct 103 ms 13636 KB Output is correct
70 Correct 110 ms 13644 KB Output is correct
71 Correct 71 ms 13640 KB Output is correct
72 Correct 67 ms 13656 KB Output is correct
73 Correct 59 ms 13388 KB Output is correct
74 Correct 64 ms 13640 KB Output is correct
75 Correct 14 ms 1104 KB Output is correct
76 Correct 103 ms 13512 KB Output is correct
77 Correct 1 ms 336 KB Output is correct
78 Correct 1 ms 336 KB Output is correct
79 Correct 1 ms 336 KB Output is correct
80 Correct 1 ms 336 KB Output is correct
81 Correct 11 ms 336 KB Output is correct
82 Correct 2 ms 336 KB Output is correct
83 Correct 1 ms 336 KB Output is correct
84 Correct 1 ms 336 KB Output is correct
85 Correct 1 ms 336 KB Output is correct
86 Correct 1 ms 336 KB Output is correct
87 Correct 1 ms 336 KB Output is correct
88 Correct 3 ms 336 KB Output is correct
89 Correct 32 ms 336 KB Output is correct
90 Correct 52 ms 336 KB Output is correct
91 Correct 39 ms 504 KB Output is correct
92 Correct 81 ms 15176 KB Output is correct
93 Correct 396 ms 25916 KB Output is correct
94 Correct 1462 ms 51948 KB Output is correct
95 Correct 112 ms 16448 KB Output is correct
96 Correct 100 ms 16448 KB Output is correct
97 Correct 120 ms 16448 KB Output is correct
98 Correct 340 ms 26556 KB Output is correct
99 Correct 335 ms 27048 KB Output is correct
100 Correct 327 ms 26936 KB Output is correct
101 Correct 324 ms 27052 KB Output is correct
102 Correct 333 ms 26936 KB Output is correct
103 Correct 1254 ms 32508 KB Output is correct
104 Correct 1258 ms 31844 KB Output is correct
105 Correct 1194 ms 31872 KB Output is correct
106 Correct 331 ms 23288 KB Output is correct
107 Correct 311 ms 22716 KB Output is correct
108 Correct 339 ms 22888 KB Output is correct
109 Correct 350 ms 22680 KB Output is correct
110 Correct 62 ms 1356 KB Output is correct
111 Correct 34 ms 1080 KB Output is correct
112 Execution timed out 5105 ms 514768 KB Time limit exceeded
113 Halted 0 ms 0 KB -