oj.uz

Submission #942057

# Submission time Handle Problem Language Result Execution time Memory
942057 2024-03-10T06:56:57 Z dshfjka Railway (BOI17_railway) C++14
100 / 100
 240 ms 62884 KB 
#include <bits/stdc++.h>
#define LL long long
#define fi first
#define se second
#define mp make_pair
using namespace std;
const LL N=1e5;
LL arr[N+5],res;
vector<LL>dep[N+5],akhir;
LL n,m,k;
vector<pair<LL,LL>>adj[N+5];
bool visited[N+5];
struct disjoint_set{
	LL parent[N+5],sz[N+5],ans[N+5];
	bool vis[N+5];
	map<LL,LL>mp[N+5];
	disjoint_set(){
		for(LL a=1;a<=N;a++)parent[a]=a;
		for(LL a=1;a<=N;a++)sz[a]=1;
	}
	LL root(LL x)
	{
	//	printf("x=%lld\n");
		if(parent[x]==x)return x;
		return parent[x]=root(parent[x]);
	}
	void merge(LL x, LL y)
	{
	//	printf("MERGE(%lld, %lld)\n",x,y);
		LL px=root(x),py=root(y);
	//	printf("%lld %lld\n",px,py);
		if(px==py)return;
	//	printf("HEE\n");
		if(sz[px]<sz[py])swap(px,py);
		sz[px]+=sz[py];
		parent[py]=px;
	//	printf("DOR\n");
		for(pair<LL,LL> a:mp[py])
		{
		//	printf("%lld %lld %lld\n",py,a.fi,a.se);
		//	printf("dep[%lld][%lld]=%lld\n",px,a.fi,mp[px][a.fi]);
			if(!mp[px][a.fi])
			{
				ans[px]++;
			}
			mp[px][a.fi]+=a.se;
			if(mp[px][a.fi]==arr[a.fi])ans[px]--;
		}
	}
	
}dsu;
void dfs(LL x, LL num)
{
//	printf("%lld %lld\n",x,num);
	visited[x]=1;
	for(LL a:dep[x]){
		dsu.mp[x][a]++;
		if(arr[x]!=1)dsu.ans[x]++;
	}
	for(pair<LL,LL> a:adj[x])
	{
		if(visited[a.fi])continue;
		dfs(a.fi,a.se);
		dsu.merge(a.fi,x);
	}
//	printf("%lld %lld , dsu.ans[%lld]=%lld\n",x,num, dsu.root(x),dsu.ans[dsu.root(x)]);
//	printf("%lld : %lld\n",num,dsu.ans[dsu.root(x)]);
	if(dsu.ans[dsu.root(x)]>=k){
		akhir.push_back(num);
	}
}
int main()
{
	
	scanf("%lld %lld %lld",&n,&m,&k);
	for(LL a=1;a<n;a++)
	{
		LL x,y;
		scanf("%lld %lld",&x,&y);
		adj[x].push_back(mp(y,a));
		adj[y].push_back(mp(x,a));
	}
	for(LL a=1;a<=m;a++)
	{
		scanf("%lld",&arr[a]);
		for(LL b=1;b<=arr[a];b++)
		{
			LL x;
			scanf("%lld",&x);
			dep[x].push_back(a);
		}
	}
	dfs(1,0);
//	printf("SINI\n");
	printf("%lld\n",akhir.size());
	sort(akhir.begin(),akhir.end());
	for(LL x:akhir){
		printf("%lld ",x);
	}
}

Compilation message

railway.cpp: In function 'int main()':
railway.cpp:95:13: warning: format '%lld' expects argument of type 'long long int', but argument 2 has type 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wformat=]
   95 |  printf("%lld\n",akhir.size());
      |          ~~~^    ~~~~~~~~~~~~
      |             |              |
      |             long long int  std::vector<long long int>::size_type {aka long unsigned int}
      |          %ld
railway.cpp:75:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   75 |  scanf("%lld %lld %lld",&n,&m,&k);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
railway.cpp:79:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   79 |   scanf("%lld %lld",&x,&y);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~
railway.cpp:85:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   85 |   scanf("%lld",&arr[a]);
      |   ~~~~~^~~~~~~~~~~~~~~~
railway.cpp:89:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   89 |    scanf("%lld",&x);
      |    ~~~~~^~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12888 KB Output is correct
2 Correct 7 ms 13660 KB Output is correct
3 Correct 6 ms 13752 KB Output is correct
4 Correct 2 ms 12888 KB Output is correct
5 Correct 3 ms 12888 KB Output is correct
6 Correct 8 ms 14680 KB Output is correct
7 Correct 6 ms 13912 KB Output is correct
8 Correct 6 ms 13660 KB Output is correct
9 Correct 6 ms 13916 KB Output is correct
10 Correct 2 ms 12892 KB Output is correct
11 Correct 3 ms 12892 KB Output is correct
12 Correct 3 ms 12892 KB Output is correct
13 Correct 2 ms 12892 KB Output is correct
14 Correct 4 ms 12892 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12888 KB Output is correct
2 Correct 7 ms 13660 KB Output is correct
3 Correct 6 ms 13752 KB Output is correct
4 Correct 2 ms 12888 KB Output is correct
5 Correct 3 ms 12888 KB Output is correct
6 Correct 8 ms 14680 KB Output is correct
7 Correct 6 ms 13912 KB Output is correct
8 Correct 6 ms 13660 KB Output is correct
9 Correct 6 ms 13916 KB Output is correct
10 Correct 2 ms 12892 KB Output is correct
11 Correct 3 ms 12892 KB Output is correct
12 Correct 3 ms 12892 KB Output is correct
13 Correct 2 ms 12892 KB Output is correct
14 Correct 4 ms 12892 KB Output is correct
15 Correct 40 ms 22884 KB Output is correct
16 Correct 42 ms 23120 KB Output is correct
17 Correct 43 ms 23124 KB Output is correct
18 Correct 8 ms 14936 KB Output is correct
19 Correct 6 ms 13916 KB Output is correct
20 Correct 42 ms 21540 KB Output is correct
21 Correct 44 ms 21500 KB Output is correct
22 Correct 2 ms 12892 KB Output is correct
23 Correct 6 ms 13656 KB Output is correct
24 Correct 6 ms 13700 KB Output is correct
25 Correct 2 ms 12892 KB Output is correct
26 Correct 3 ms 12892 KB Output is correct
27 Correct 7 ms 14764 KB Output is correct
28 Correct 7 ms 13912 KB Output is correct
29 Correct 6 ms 13660 KB Output is correct
30 Correct 6 ms 13916 KB Output is correct
31 Correct 3 ms 12892 KB Output is correct
32 Correct 3 ms 12928 KB Output is correct
33 Correct 3 ms 13088 KB Output is correct
34 Correct 2 ms 12728 KB Output is correct
35 Correct 3 ms 12892 KB Output is correct

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 118 ms 48848 KB Output is correct
2 Correct 3 ms 12892 KB Output is correct
3 Correct 113 ms 50120 KB Output is correct
4 Correct 109 ms 49488 KB Output is correct
5 Correct 98 ms 48172 KB Output is correct
6 Correct 104 ms 51652 KB Output is correct

Subtask #4
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 104 ms 38760 KB Output is correct
2 Correct 126 ms 38824 KB Output is correct
3 Correct 168 ms 46884 KB Output is correct
4 Correct 189 ms 53456 KB Output is correct
5 Correct 167 ms 47952 KB Output is correct
6 Correct 106 ms 40808 KB Output is correct
7 Correct 101 ms 40300 KB Output is correct

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 104 ms 38760 KB Output is correct
2 Correct 126 ms 38824 KB Output is correct
3 Correct 168 ms 46884 KB Output is correct
4 Correct 189 ms 53456 KB Output is correct
5 Correct 167 ms 47952 KB Output is correct
6 Correct 106 ms 40808 KB Output is correct
7 Correct 101 ms 40300 KB Output is correct
8 Correct 98 ms 40188 KB Output is correct
9 Correct 99 ms 40040 KB Output is correct
10 Correct 84 ms 47744 KB Output is correct
11 Correct 83 ms 47792 KB Output is correct
12 Correct 60 ms 27424 KB Output is correct
13 Correct 61 ms 27360 KB Output is correct
14 Correct 136 ms 40792 KB Output is correct
15 Correct 149 ms 41164 KB Output is correct
16 Correct 192 ms 54100 KB Output is correct
17 Correct 196 ms 55232 KB Output is correct
18 Correct 180 ms 52816 KB Output is correct
19 Correct 121 ms 37716 KB Output is correct
20 Correct 107 ms 40920 KB Output is correct
21 Correct 105 ms 40912 KB Output is correct
22 Correct 108 ms 41252 KB Output is correct

Subtask #6
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12888 KB Output is correct
2 Correct 7 ms 13660 KB Output is correct
3 Correct 6 ms 13752 KB Output is correct
4 Correct 2 ms 12888 KB Output is correct
5 Correct 3 ms 12888 KB Output is correct
6 Correct 8 ms 14680 KB Output is correct
7 Correct 6 ms 13912 KB Output is correct
8 Correct 6 ms 13660 KB Output is correct
9 Correct 6 ms 13916 KB Output is correct
10 Correct 2 ms 12892 KB Output is correct
11 Correct 3 ms 12892 KB Output is correct
12 Correct 3 ms 12892 KB Output is correct
13 Correct 2 ms 12892 KB Output is correct
14 Correct 4 ms 12892 KB Output is correct
15 Correct 40 ms 22884 KB Output is correct
16 Correct 42 ms 23120 KB Output is correct
17 Correct 43 ms 23124 KB Output is correct
18 Correct 8 ms 14936 KB Output is correct
19 Correct 6 ms 13916 KB Output is correct
20 Correct 42 ms 21540 KB Output is correct
21 Correct 44 ms 21500 KB Output is correct
22 Correct 2 ms 12892 KB Output is correct
23 Correct 6 ms 13656 KB Output is correct
24 Correct 6 ms 13700 KB Output is correct
25 Correct 2 ms 12892 KB Output is correct
26 Correct 3 ms 12892 KB Output is correct
27 Correct 7 ms 14764 KB Output is correct
28 Correct 7 ms 13912 KB Output is correct
29 Correct 6 ms 13660 KB Output is correct
30 Correct 6 ms 13916 KB Output is correct
31 Correct 3 ms 12892 KB Output is correct
32 Correct 3 ms 12928 KB Output is correct
33 Correct 3 ms 13088 KB Output is correct
34 Correct 2 ms 12728 KB Output is correct
35 Correct 3 ms 12892 KB Output is correct
36 Correct 118 ms 48848 KB Output is correct
37 Correct 3 ms 12892 KB Output is correct
38 Correct 113 ms 50120 KB Output is correct
39 Correct 109 ms 49488 KB Output is correct
40 Correct 98 ms 48172 KB Output is correct
41 Correct 104 ms 51652 KB Output is correct
42 Correct 104 ms 38760 KB Output is correct
43 Correct 126 ms 38824 KB Output is correct
44 Correct 168 ms 46884 KB Output is correct
45 Correct 189 ms 53456 KB Output is correct
46 Correct 167 ms 47952 KB Output is correct
47 Correct 106 ms 40808 KB Output is correct
48 Correct 101 ms 40300 KB Output is correct
49 Correct 98 ms 40188 KB Output is correct
50 Correct 99 ms 40040 KB Output is correct
51 Correct 84 ms 47744 KB Output is correct
52 Correct 83 ms 47792 KB Output is correct
53 Correct 60 ms 27424 KB Output is correct
54 Correct 61 ms 27360 KB Output is correct
55 Correct 136 ms 40792 KB Output is correct
56 Correct 149 ms 41164 KB Output is correct
57 Correct 192 ms 54100 KB Output is correct
58 Correct 196 ms 55232 KB Output is correct
59 Correct 180 ms 52816 KB Output is correct
60 Correct 121 ms 37716 KB Output is correct
61 Correct 107 ms 40920 KB Output is correct
62 Correct 105 ms 40912 KB Output is correct
63 Correct 108 ms 41252 KB Output is correct
64 Correct 102 ms 40908 KB Output is correct
65 Correct 194 ms 55120 KB Output is correct
66 Correct 179 ms 47444 KB Output is correct
67 Correct 132 ms 41808 KB Output is correct
68 Correct 59 ms 24656 KB Output is correct
69 Correct 57 ms 24660 KB Output is correct
70 Correct 112 ms 42652 KB Output is correct
71 Correct 96 ms 39760 KB Output is correct
72 Correct 2 ms 12888 KB Output is correct
73 Correct 7 ms 13660 KB Output is correct
74 Correct 6 ms 13660 KB Output is correct
75 Correct 3 ms 12892 KB Output is correct
76 Correct 2 ms 12892 KB Output is correct
77 Correct 8 ms 14684 KB Output is correct
78 Correct 6 ms 13916 KB Output is correct
79 Correct 6 ms 13660 KB Output is correct
80 Correct 6 ms 13956 KB Output is correct
81 Correct 3 ms 12892 KB Output is correct
82 Correct 2 ms 12892 KB Output is correct
83 Correct 2 ms 12892 KB Output is correct
84 Correct 3 ms 12892 KB Output is correct
85 Correct 2 ms 12892 KB Output is correct
86 Correct 42 ms 22980 KB Output is correct
87 Correct 42 ms 23064 KB Output is correct
88 Correct 43 ms 23120 KB Output is correct
89 Correct 8 ms 14940 KB Output is correct
90 Correct 7 ms 13916 KB Output is correct
91 Correct 43 ms 21588 KB Output is correct
92 Correct 42 ms 21588 KB Output is correct
93 Correct 2 ms 12892 KB Output is correct
94 Correct 115 ms 50648 KB Output is correct
95 Correct 111 ms 50124 KB Output is correct
96 Correct 108 ms 49556 KB Output is correct
97 Correct 93 ms 47872 KB Output is correct
98 Correct 104 ms 51544 KB Output is correct
99 Correct 193 ms 55376 KB Output is correct
100 Correct 183 ms 52304 KB Output is correct
101 Correct 240 ms 62884 KB Output is correct
102 Correct 128 ms 39504 KB Output is correct
103 Correct 102 ms 40680 KB Output is correct
104 Correct 109 ms 41092 KB Output is correct
105 Correct 101 ms 40464 KB Output is correct
106 Correct 111 ms 39888 KB Output is correct
107 Correct 100 ms 40016 KB Output is correct
108 Correct 99 ms 48040 KB Output is correct
109 Correct 82 ms 47712 KB Output is correct
110 Correct 63 ms 27336 KB Output is correct
111 Correct 64 ms 27216 KB Output is correct
112 Correct 145 ms 41552 KB Output is correct
113 Correct 133 ms 40016 KB Output is correct