oj.uz

Submission #896403

# Submission time Handle Problem Language Result Execution time Memory
896403 2024-01-01T11:32:41 Z pcc Railway (BOI17_railway) C++14
100 / 100
 147 ms 34920 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define pll pair<ll,ll>
#define pii pair<int,int>
#define fs first
#define sc second
#define tlll tuple<ll,ll,ll>


const int mxn = 1e5+10;
map<int,int> mp[mxn];
int good;
int N,M,K;
vector<pii> tree[mxn];
vector<int> req[mxn];
vector<int> ans;
int sz[mxn];

void dfs(int now,int par,int id){
	for(auto nxt:tree[now]){
		if(nxt.fs == par)continue;
		dfs(nxt.fs,now,nxt.sc);
		if(mp[nxt.fs].size()>mp[now].size())swap(mp[now],mp[nxt.fs]);
		for(auto &i:mp[nxt.fs]){
			mp[now][i.fs] += i.sc;
			if(mp[now][i.fs] == sz[i.fs])mp[now].erase(i.fs);
		}
	}
	for(auto &i:req[now]){
		mp[now][i]++;
		if(mp[now][i] == sz[i])mp[now].erase(i);
	}
	if(mp[now].size()>=K&&id)ans.push_back(id);
}

int main(){
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin>>N>>M>>K;
	for(int i = 1;i<N;i++){
		int a,b;
		cin>>a>>b;
		tree[a].push_back({b,i});
		tree[b].push_back({a,i});
	}
	for(int i = 1;i<=M;i++){
		int tmp;
		cin>>tmp;
		sz[i] = tmp;
		while(tmp--){
			int k;
			cin>>k;
			req[k].push_back(i);
		}
	}
	dfs(1,0,0);
	sort(ans.begin(),ans.end());
	cout<<ans.size()<<'\n';
	for(auto &i:ans)cout<<i<<' ';cout<<'\n';
}

Compilation message

railway.cpp: In function 'void dfs(int, int, int)':
railway.cpp:35:19: warning: comparison of integer expressions of different signedness: 'std::map<int, int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   35 |  if(mp[now].size()>=K&&id)ans.push_back(id);
      |     ~~~~~~~~~~~~~~^~~
railway.cpp: In function 'int main()':
railway.cpp:60:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   60 |  for(auto &i:ans)cout<<i<<' ';cout<<'\n';
      |  ^~~
railway.cpp:60:31: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   60 |  for(auto &i:ans)cout<<i<<' ';cout<<'\n';
      |                               ^~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 10076 KB Output is correct
2 Correct 5 ms 10332 KB Output is correct
3 Correct 5 ms 10428 KB Output is correct
4 Correct 3 ms 9820 KB Output is correct
5 Correct 3 ms 9820 KB Output is correct
6 Correct 6 ms 11096 KB Output is correct
7 Correct 5 ms 10588 KB Output is correct
8 Correct 5 ms 10680 KB Output is correct
9 Correct 5 ms 10588 KB Output is correct
10 Correct 2 ms 10076 KB Output is correct
11 Correct 2 ms 10076 KB Output is correct
12 Correct 2 ms 9820 KB Output is correct
13 Correct 3 ms 10076 KB Output is correct
14 Correct 3 ms 10076 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 10076 KB Output is correct
2 Correct 5 ms 10332 KB Output is correct
3 Correct 5 ms 10428 KB Output is correct
4 Correct 3 ms 9820 KB Output is correct
5 Correct 3 ms 9820 KB Output is correct
6 Correct 6 ms 11096 KB Output is correct
7 Correct 5 ms 10588 KB Output is correct
8 Correct 5 ms 10680 KB Output is correct
9 Correct 5 ms 10588 KB Output is correct
10 Correct 2 ms 10076 KB Output is correct
11 Correct 2 ms 10076 KB Output is correct
12 Correct 2 ms 9820 KB Output is correct
13 Correct 3 ms 10076 KB Output is correct
14 Correct 3 ms 10076 KB Output is correct
15 Correct 28 ms 14420 KB Output is correct
16 Correct 31 ms 14400 KB Output is correct
17 Correct 27 ms 14420 KB Output is correct
18 Correct 6 ms 11184 KB Output is correct
19 Correct 5 ms 10588 KB Output is correct
20 Correct 32 ms 15728 KB Output is correct
21 Correct 33 ms 15952 KB Output is correct
22 Correct 2 ms 9820 KB Output is correct
23 Correct 5 ms 10332 KB Output is correct
24 Correct 5 ms 10424 KB Output is correct
25 Correct 2 ms 9820 KB Output is correct
26 Correct 3 ms 10076 KB Output is correct
27 Correct 5 ms 11100 KB Output is correct
28 Correct 5 ms 10588 KB Output is correct
29 Correct 6 ms 10668 KB Output is correct
30 Correct 5 ms 10588 KB Output is correct
31 Correct 3 ms 10076 KB Output is correct
32 Correct 2 ms 10076 KB Output is correct
33 Correct 3 ms 9820 KB Output is correct
34 Correct 4 ms 10076 KB Output is correct
35 Correct 2 ms 10076 KB Output is correct

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 29644 KB Output is correct
2 Correct 2 ms 9820 KB Output is correct
3 Correct 87 ms 29392 KB Output is correct
4 Correct 77 ms 28948 KB Output is correct
5 Correct 67 ms 28912 KB Output is correct
6 Correct 71 ms 28756 KB Output is correct

Subtask #4
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 68 ms 23760 KB Output is correct
2 Correct 81 ms 20444 KB Output is correct
3 Correct 97 ms 26192 KB Output is correct
4 Correct 101 ms 26832 KB Output is correct
5 Correct 105 ms 26588 KB Output is correct
6 Correct 73 ms 24132 KB Output is correct
7 Correct 73 ms 23892 KB Output is correct

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 68 ms 23760 KB Output is correct
2 Correct 81 ms 20444 KB Output is correct
3 Correct 97 ms 26192 KB Output is correct
4 Correct 101 ms 26832 KB Output is correct
5 Correct 105 ms 26588 KB Output is correct
6 Correct 73 ms 24132 KB Output is correct
7 Correct 73 ms 23892 KB Output is correct
8 Correct 63 ms 24088 KB Output is correct
9 Correct 63 ms 23636 KB Output is correct
10 Correct 57 ms 28444 KB Output is correct
11 Correct 59 ms 28620 KB Output is correct
12 Correct 57 ms 20700 KB Output is correct
13 Correct 45 ms 20572 KB Output is correct
14 Correct 74 ms 21840 KB Output is correct
15 Correct 76 ms 22092 KB Output is correct
16 Correct 106 ms 28004 KB Output is correct
17 Correct 119 ms 28396 KB Output is correct
18 Correct 99 ms 26196 KB Output is correct
19 Correct 85 ms 21404 KB Output is correct
20 Correct 77 ms 24152 KB Output is correct
21 Correct 83 ms 24276 KB Output is correct
22 Correct 74 ms 24400 KB Output is correct

Subtask #6
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 10076 KB Output is correct
2 Correct 5 ms 10332 KB Output is correct
3 Correct 5 ms 10428 KB Output is correct
4 Correct 3 ms 9820 KB Output is correct
5 Correct 3 ms 9820 KB Output is correct
6 Correct 6 ms 11096 KB Output is correct
7 Correct 5 ms 10588 KB Output is correct
8 Correct 5 ms 10680 KB Output is correct
9 Correct 5 ms 10588 KB Output is correct
10 Correct 2 ms 10076 KB Output is correct
11 Correct 2 ms 10076 KB Output is correct
12 Correct 2 ms 9820 KB Output is correct
13 Correct 3 ms 10076 KB Output is correct
14 Correct 3 ms 10076 KB Output is correct
15 Correct 28 ms 14420 KB Output is correct
16 Correct 31 ms 14400 KB Output is correct
17 Correct 27 ms 14420 KB Output is correct
18 Correct 6 ms 11184 KB Output is correct
19 Correct 5 ms 10588 KB Output is correct
20 Correct 32 ms 15728 KB Output is correct
21 Correct 33 ms 15952 KB Output is correct
22 Correct 2 ms 9820 KB Output is correct
23 Correct 5 ms 10332 KB Output is correct
24 Correct 5 ms 10424 KB Output is correct
25 Correct 2 ms 9820 KB Output is correct
26 Correct 3 ms 10076 KB Output is correct
27 Correct 5 ms 11100 KB Output is correct
28 Correct 5 ms 10588 KB Output is correct
29 Correct 6 ms 10668 KB Output is correct
30 Correct 5 ms 10588 KB Output is correct
31 Correct 3 ms 10076 KB Output is correct
32 Correct 2 ms 10076 KB Output is correct
33 Correct 3 ms 9820 KB Output is correct
34 Correct 4 ms 10076 KB Output is correct
35 Correct 2 ms 10076 KB Output is correct
36 Correct 87 ms 29644 KB Output is correct
37 Correct 2 ms 9820 KB Output is correct
38 Correct 87 ms 29392 KB Output is correct
39 Correct 77 ms 28948 KB Output is correct
40 Correct 67 ms 28912 KB Output is correct
41 Correct 71 ms 28756 KB Output is correct
42 Correct 68 ms 23760 KB Output is correct
43 Correct 81 ms 20444 KB Output is correct
44 Correct 97 ms 26192 KB Output is correct
45 Correct 101 ms 26832 KB Output is correct
46 Correct 105 ms 26588 KB Output is correct
47 Correct 73 ms 24132 KB Output is correct
48 Correct 73 ms 23892 KB Output is correct
49 Correct 63 ms 24088 KB Output is correct
50 Correct 63 ms 23636 KB Output is correct
51 Correct 57 ms 28444 KB Output is correct
52 Correct 59 ms 28620 KB Output is correct
53 Correct 57 ms 20700 KB Output is correct
54 Correct 45 ms 20572 KB Output is correct
55 Correct 74 ms 21840 KB Output is correct
56 Correct 76 ms 22092 KB Output is correct
57 Correct 106 ms 28004 KB Output is correct
58 Correct 119 ms 28396 KB Output is correct
59 Correct 99 ms 26196 KB Output is correct
60 Correct 85 ms 21404 KB Output is correct
61 Correct 77 ms 24152 KB Output is correct
62 Correct 83 ms 24276 KB Output is correct
63 Correct 74 ms 24400 KB Output is correct
64 Correct 69 ms 24148 KB Output is correct
65 Correct 147 ms 34920 KB Output is correct
66 Correct 115 ms 31436 KB Output is correct
67 Correct 96 ms 26480 KB Output is correct
68 Correct 49 ms 18512 KB Output is correct
69 Correct 40 ms 18516 KB Output is correct
70 Correct 72 ms 25296 KB Output is correct
71 Correct 63 ms 24136 KB Output is correct
72 Correct 3 ms 9820 KB Output is correct
73 Correct 5 ms 10332 KB Output is correct
74 Correct 7 ms 10332 KB Output is correct
75 Correct 2 ms 10076 KB Output is correct
76 Correct 3 ms 9820 KB Output is correct
77 Correct 5 ms 11120 KB Output is correct
78 Correct 5 ms 10588 KB Output is correct
79 Correct 5 ms 10588 KB Output is correct
80 Correct 5 ms 10584 KB Output is correct
81 Correct 2 ms 10076 KB Output is correct
82 Correct 2 ms 9820 KB Output is correct
83 Correct 3 ms 9820 KB Output is correct
84 Correct 3 ms 10076 KB Output is correct
85 Correct 2 ms 10076 KB Output is correct
86 Correct 27 ms 14380 KB Output is correct
87 Correct 28 ms 14428 KB Output is correct
88 Correct 32 ms 14372 KB Output is correct
89 Correct 6 ms 11100 KB Output is correct
90 Correct 5 ms 10736 KB Output is correct
91 Correct 32 ms 15940 KB Output is correct
92 Correct 32 ms 15964 KB Output is correct
93 Correct 2 ms 10328 KB Output is correct
94 Correct 89 ms 29648 KB Output is correct
95 Correct 78 ms 29472 KB Output is correct
96 Correct 82 ms 29008 KB Output is correct
97 Correct 65 ms 28916 KB Output is correct
98 Correct 66 ms 28624 KB Output is correct
99 Correct 110 ms 30612 KB Output is correct
100 Correct 98 ms 27892 KB Output is correct
101 Correct 112 ms 28180 KB Output is correct
102 Correct 81 ms 21076 KB Output is correct
103 Correct 80 ms 24316 KB Output is correct
104 Correct 75 ms 24660 KB Output is correct
105 Correct 73 ms 23888 KB Output is correct
106 Correct 67 ms 24396 KB Output is correct
107 Correct 62 ms 24400 KB Output is correct
108 Correct 55 ms 28632 KB Output is correct
109 Correct 58 ms 28528 KB Output is correct
110 Correct 46 ms 20640 KB Output is correct
111 Correct 47 ms 20568 KB Output is correct
112 Correct 79 ms 21588 KB Output is correct
113 Correct 84 ms 21800 KB Output is correct