oj.uz

답안 #812595

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
812595 2023-08-07T09:28:50 Z I_Love_EliskaM_ 꿈 (IOI13_dreaming) C++17
47 / 100
 367 ms 27876 KB 
#include "dreaming.h"
#include <bits/stdc++.h>
using namespace std;
#define forn(i,n) for(int i=0; i<n; ++i)
#define pb push_back
#define all(x) x.begin(), x.end()
#define pi pair<int,int>
#define f first
#define s second
using ll = long long;

struct DSU {
	vector<int> p,sz;
	DSU(int n) {
		forn(i,n) p.pb(i), sz.pb(1);
	}
	int get(int u) {
		return p[u]==u?u:get(p[u]);
	}
	void uni(int u, int v) {
		u=get(u),v=get(v);
		if (u==v) return;
		if (sz[u]<sz[v]) swap(u,v);
		sz[u]+=sz[v];
		p[v]=u;
	}
};

const int N=1e5+5;
vector<pi> adj[N];
bitset<N> vis;

int d[N], in[N];
void dfs(int u, int p) {
	in[u]=0;
	for(auto&e:adj[u]) {
		int v=e.f, w=e.s;
		if (v==p) continue;
		d[v]=d[u]+w;
		dfs(v,u);
		in[u]=max(in[u],in[v]+w);
	}
}

int ans=0;
pi find(int u, int p, int o) {
	ans=max(ans,o+in[u]);
	pi ret = {u, max(o,in[u])};
	vector<int> sf={0};
	reverse(all(adj[u]));
	for(auto&e:adj[u]) {
		int v=e.f, w=e.s;
		if (v==p) continue;
		sf.pb(max(sf.back(),in[v]+w));
	}
	reverse(all(adj[u]));
	int mx=0;
	for(auto&e:adj[u]) {
		int v=e.f, w=e.s;
		if (v==p) continue;
		sf.pop_back();
		auto x = find(v,u,max({o,mx,sf.back()})+w);
		if (x.s<ret.s) ret=x;
		mx=max(mx,in[v]+w);
	}
	return ret;
}

int travelTime(int n, int m, int l, int a[], int b[], int t[]) {

	forn(i,m) {
		int u=a[i],v=b[i],w=t[i];
		adj[u].pb({v,w});
		adj[v].pb({u,w});
	}

	forn(it,20) {

		DSU dsu(n);
		forn(i,n) for(auto&x:adj[i]) dsu.uni(i,x.f);
		vis.reset();
		vector<int> c;
		forn(i,n) {
			int u=dsu.get(i);
			if (vis[u]) continue;
			vis[u]=1;
			c.pb(u);
		}
		int k=c.size();
		for (int i=k&1; i<k; i+=2) {
			d[c[i]]=0;
			d[c[i+1]]=0;
			dfs(c[i],-1);
			dfs(c[i+1],-1);
			auto q1 = find(c[i],-1,0);
			auto q2 = find(c[i+1],-1,0);
			int u=q1.f, v=q2.f;
			adj[u].pb({v,l});
			adj[v].pb({u,l});
		}

	}

	ans=0;
	d[0]=0;
	dfs(0,-1);
	find(0,-1,0);
	return ans;

}

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 167 ms 23068 KB Output is correct
2 Correct 148 ms 18608 KB Output is correct
3 Correct 100 ms 16292 KB Output is correct
4 Correct 22 ms 5524 KB Output is correct
5 Correct 19 ms 4068 KB Output is correct
6 Correct 40 ms 6260 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 66 ms 9724 KB Output is correct
9 Correct 85 ms 13140 KB Output is correct
10 Correct 2 ms 2772 KB Output is correct
11 Correct 120 ms 13468 KB Output is correct
12 Correct 145 ms 17344 KB Output is correct
13 Correct 2 ms 2796 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2660 KB Output is correct
3 Correct 1 ms 2644 KB Output is correct
4 Correct 1 ms 2644 KB Output is correct
5 Correct 1 ms 2644 KB Output is correct
6 Correct 1 ms 2644 KB Output is correct
7 Correct 1 ms 2644 KB Output is correct
8 Correct 2 ms 2664 KB Output is correct
9 Correct 1 ms 2644 KB Output is correct
10 Correct 1 ms 2644 KB Output is correct
11 Correct 2 ms 2644 KB Output is correct
12 Correct 1 ms 2644 KB Output is correct
13 Correct 1 ms 2644 KB Output is correct
14 Correct 2 ms 2660 KB Output is correct
15 Correct 1 ms 2644 KB Output is correct
16 Correct 2 ms 2644 KB Output is correct
17 Correct 2 ms 2644 KB Output is correct
18 Correct 2 ms 2644 KB Output is correct
19 Correct 2 ms 2644 KB Output is correct
20 Correct 1 ms 2644 KB Output is correct
21 Correct 1 ms 2644 KB Output is correct
22 Correct 1 ms 2644 KB Output is correct
23 Correct 2 ms 2656 KB Output is correct
24 Correct 1 ms 2700 KB Output is correct
25 Correct 1 ms 2644 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 167 ms 23068 KB Output is correct
2 Correct 148 ms 18608 KB Output is correct
3 Correct 100 ms 16292 KB Output is correct
4 Correct 22 ms 5524 KB Output is correct
5 Correct 19 ms 4068 KB Output is correct
6 Correct 40 ms 6260 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 66 ms 9724 KB Output is correct
9 Correct 85 ms 13140 KB Output is correct
10 Correct 2 ms 2772 KB Output is correct
11 Correct 120 ms 13468 KB Output is correct
12 Correct 145 ms 17344 KB Output is correct
13 Correct 2 ms 2796 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 2 ms 2660 KB Output is correct
16 Correct 1 ms 2644 KB Output is correct
17 Correct 1 ms 2644 KB Output is correct
18 Correct 1 ms 2644 KB Output is correct
19 Correct 1 ms 2644 KB Output is correct
20 Correct 1 ms 2644 KB Output is correct
21 Correct 2 ms 2664 KB Output is correct
22 Correct 1 ms 2644 KB Output is correct
23 Correct 1 ms 2644 KB Output is correct
24 Correct 2 ms 2644 KB Output is correct
25 Correct 1 ms 2644 KB Output is correct
26 Correct 1 ms 2644 KB Output is correct
27 Correct 2 ms 2660 KB Output is correct
28 Correct 1 ms 2644 KB Output is correct
29 Correct 2 ms 2644 KB Output is correct
30 Correct 2 ms 2644 KB Output is correct
31 Correct 2 ms 2644 KB Output is correct
32 Correct 2 ms 2644 KB Output is correct
33 Correct 1 ms 2644 KB Output is correct
34 Correct 1 ms 2644 KB Output is correct
35 Correct 1 ms 2644 KB Output is correct
36 Correct 2 ms 2656 KB Output is correct
37 Correct 1 ms 2700 KB Output is correct
38 Correct 1 ms 2644 KB Output is correct
39 Correct 154 ms 23036 KB Output is correct
40 Correct 152 ms 18592 KB Output is correct
41 Correct 105 ms 16204 KB Output is correct
42 Correct 21 ms 5460 KB Output is correct
43 Correct 1 ms 2644 KB Output is correct
44 Correct 1 ms 2644 KB Output is correct
45 Correct 1 ms 2644 KB Output is correct
46 Correct 2 ms 2644 KB Output is correct
47 Correct 2 ms 2644 KB Output is correct
48 Correct 1 ms 2644 KB Output is correct
49 Correct 1 ms 2644 KB Output is correct
50 Correct 1 ms 2644 KB Output is correct
51 Correct 1 ms 2644 KB Output is correct
52 Correct 1 ms 2644 KB Output is correct
53 Correct 1 ms 2644 KB Output is correct
54 Correct 1 ms 2644 KB Output is correct
55 Correct 2 ms 2644 KB Output is correct
56 Correct 1 ms 2644 KB Output is correct
57 Correct 178 ms 11220 KB Output is correct
58 Correct 176 ms 11220 KB Output is correct
59 Correct 193 ms 11256 KB Output is correct
60 Correct 186 ms 11200 KB Output is correct
61 Correct 181 ms 11256 KB Output is correct
62 Correct 183 ms 11240 KB Output is correct
63 Correct 169 ms 10900 KB Output is correct
64 Correct 194 ms 10916 KB Output is correct
65 Correct 193 ms 11172 KB Output is correct
66 Correct 191 ms 11168 KB Output is correct
67 Correct 179 ms 11260 KB Output is correct
68 Correct 180 ms 11192 KB Output is correct
69 Correct 178 ms 11472 KB Output is correct
70 Correct 194 ms 11480 KB Output is correct
71 Correct 2 ms 2644 KB Output is correct
72 Correct 5 ms 2928 KB Output is correct
73 Correct 6 ms 2900 KB Output is correct
74 Correct 6 ms 2964 KB Output is correct
75 Correct 5 ms 2900 KB Output is correct
76 Correct 5 ms 2900 KB Output is correct
77 Correct 5 ms 2928 KB Output is correct
78 Correct 6 ms 2900 KB Output is correct
79 Correct 5 ms 2900 KB Output is correct
80 Correct 191 ms 11164 KB Output is correct
81 Correct 207 ms 11216 KB Output is correct
82 Correct 179 ms 11264 KB Output is correct
83 Correct 227 ms 11256 KB Output is correct
84 Correct 5 ms 2908 KB Output is correct
85 Correct 3 ms 2772 KB Output is correct
86 Correct 4 ms 2900 KB Output is correct
87 Correct 9 ms 2900 KB Output is correct
88 Correct 5 ms 2900 KB Output is correct
89 Correct 6 ms 2936 KB Output is correct
90 Correct 5 ms 2928 KB Output is correct
91 Correct 6 ms 2932 KB Output is correct
92 Correct 5 ms 2900 KB Output is correct
93 Correct 5 ms 2932 KB Output is correct
94 Correct 2 ms 2644 KB Output is correct
95 Correct 1 ms 2644 KB Output is correct
96 Correct 1 ms 2660 KB Output is correct
97 Correct 1 ms 2660 KB Output is correct
98 Correct 1 ms 2664 KB Output is correct
99 Correct 2 ms 2644 KB Output is correct
100 Correct 2 ms 2644 KB Output is correct
101 Correct 2 ms 2644 KB Output is correct
102 Correct 1 ms 2664 KB Output is correct
103 Correct 4 ms 2664 KB Output is correct
104 Correct 15 ms 4076 KB Output is correct
105 Correct 33 ms 6256 KB Output is correct
106 Correct 2 ms 2644 KB Output is correct
107 Correct 158 ms 9752 KB Output is correct
108 Correct 83 ms 13132 KB Output is correct
109 Correct 3 ms 2772 KB Output is correct
110 Correct 121 ms 13564 KB Output is correct
111 Correct 146 ms 17340 KB Output is correct
112 Correct 3 ms 2772 KB Output is correct
113 Correct 195 ms 27876 KB Output is correct

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 154 ms 10244 KB Output is correct
2 Incorrect 367 ms 10268 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2660 KB Output is correct
3 Correct 1 ms 2644 KB Output is correct
4 Correct 1 ms 2644 KB Output is correct
5 Correct 1 ms 2644 KB Output is correct
6 Correct 1 ms 2644 KB Output is correct
7 Correct 1 ms 2644 KB Output is correct
8 Correct 2 ms 2664 KB Output is correct
9 Correct 1 ms 2644 KB Output is correct
10 Correct 1 ms 2644 KB Output is correct
11 Correct 2 ms 2644 KB Output is correct
12 Correct 1 ms 2644 KB Output is correct
13 Correct 1 ms 2644 KB Output is correct
14 Correct 2 ms 2660 KB Output is correct
15 Correct 1 ms 2644 KB Output is correct
16 Correct 2 ms 2644 KB Output is correct
17 Correct 2 ms 2644 KB Output is correct
18 Correct 2 ms 2644 KB Output is correct
19 Correct 2 ms 2644 KB Output is correct
20 Correct 1 ms 2644 KB Output is correct
21 Correct 1 ms 2644 KB Output is correct
22 Correct 1 ms 2644 KB Output is correct
23 Correct 2 ms 2656 KB Output is correct
24 Correct 1 ms 2700 KB Output is correct
25 Correct 1 ms 2644 KB Output is correct
26 Correct 4 ms 2772 KB Output is correct
27 Correct 4 ms 2848 KB Output is correct
28 Correct 6 ms 2900 KB Output is correct
29 Incorrect 4 ms 2772 KB Output isn't correct
30 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 167 ms 23068 KB Output is correct
2 Correct 148 ms 18608 KB Output is correct
3 Correct 100 ms 16292 KB Output is correct
4 Correct 22 ms 5524 KB Output is correct
5 Correct 19 ms 4068 KB Output is correct
6 Correct 40 ms 6260 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 66 ms 9724 KB Output is correct
9 Correct 85 ms 13140 KB Output is correct
10 Correct 2 ms 2772 KB Output is correct
11 Correct 120 ms 13468 KB Output is correct
12 Correct 145 ms 17344 KB Output is correct
13 Correct 2 ms 2796 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 2 ms 2660 KB Output is correct
16 Correct 1 ms 2644 KB Output is correct
17 Correct 1 ms 2644 KB Output is correct
18 Correct 1 ms 2644 KB Output is correct
19 Correct 1 ms 2644 KB Output is correct
20 Correct 1 ms 2644 KB Output is correct
21 Correct 2 ms 2664 KB Output is correct
22 Correct 1 ms 2644 KB Output is correct
23 Correct 1 ms 2644 KB Output is correct
24 Correct 2 ms 2644 KB Output is correct
25 Correct 1 ms 2644 KB Output is correct
26 Correct 1 ms 2644 KB Output is correct
27 Correct 2 ms 2660 KB Output is correct
28 Correct 1 ms 2644 KB Output is correct
29 Correct 2 ms 2644 KB Output is correct
30 Correct 2 ms 2644 KB Output is correct
31 Correct 2 ms 2644 KB Output is correct
32 Correct 2 ms 2644 KB Output is correct
33 Correct 1 ms 2644 KB Output is correct
34 Correct 1 ms 2644 KB Output is correct
35 Correct 1 ms 2644 KB Output is correct
36 Correct 2 ms 2656 KB Output is correct
37 Correct 1 ms 2700 KB Output is correct
38 Correct 1 ms 2644 KB Output is correct
39 Correct 154 ms 23036 KB Output is correct
40 Correct 152 ms 18592 KB Output is correct
41 Correct 105 ms 16204 KB Output is correct
42 Correct 21 ms 5460 KB Output is correct
43 Correct 1 ms 2644 KB Output is correct
44 Correct 1 ms 2644 KB Output is correct
45 Correct 1 ms 2644 KB Output is correct
46 Correct 2 ms 2644 KB Output is correct
47 Correct 2 ms 2644 KB Output is correct
48 Correct 1 ms 2644 KB Output is correct
49 Correct 1 ms 2644 KB Output is correct
50 Correct 1 ms 2644 KB Output is correct
51 Correct 1 ms 2644 KB Output is correct
52 Correct 1 ms 2644 KB Output is correct
53 Correct 1 ms 2644 KB Output is correct
54 Correct 1 ms 2644 KB Output is correct
55 Correct 2 ms 2644 KB Output is correct
56 Correct 1 ms 2644 KB Output is correct
57 Correct 178 ms 11220 KB Output is correct
58 Correct 176 ms 11220 KB Output is correct
59 Correct 193 ms 11256 KB Output is correct
60 Correct 186 ms 11200 KB Output is correct
61 Correct 181 ms 11256 KB Output is correct
62 Correct 183 ms 11240 KB Output is correct
63 Correct 169 ms 10900 KB Output is correct
64 Correct 194 ms 10916 KB Output is correct
65 Correct 193 ms 11172 KB Output is correct
66 Correct 191 ms 11168 KB Output is correct
67 Correct 179 ms 11260 KB Output is correct
68 Correct 180 ms 11192 KB Output is correct
69 Correct 178 ms 11472 KB Output is correct
70 Correct 194 ms 11480 KB Output is correct
71 Correct 2 ms 2644 KB Output is correct
72 Correct 5 ms 2928 KB Output is correct
73 Correct 6 ms 2900 KB Output is correct
74 Correct 6 ms 2964 KB Output is correct
75 Correct 5 ms 2900 KB Output is correct
76 Correct 5 ms 2900 KB Output is correct
77 Correct 5 ms 2928 KB Output is correct
78 Correct 6 ms 2900 KB Output is correct
79 Correct 5 ms 2900 KB Output is correct
80 Correct 191 ms 11164 KB Output is correct
81 Correct 207 ms 11216 KB Output is correct
82 Correct 179 ms 11264 KB Output is correct
83 Correct 227 ms 11256 KB Output is correct
84 Correct 5 ms 2908 KB Output is correct
85 Correct 3 ms 2772 KB Output is correct
86 Correct 4 ms 2900 KB Output is correct
87 Correct 9 ms 2900 KB Output is correct
88 Correct 5 ms 2900 KB Output is correct
89 Correct 6 ms 2936 KB Output is correct
90 Correct 5 ms 2928 KB Output is correct
91 Correct 6 ms 2932 KB Output is correct
92 Correct 5 ms 2900 KB Output is correct
93 Correct 5 ms 2932 KB Output is correct
94 Correct 2 ms 2644 KB Output is correct
95 Correct 1 ms 2644 KB Output is correct
96 Correct 1 ms 2660 KB Output is correct
97 Correct 1 ms 2660 KB Output is correct
98 Correct 1 ms 2664 KB Output is correct
99 Correct 2 ms 2644 KB Output is correct
100 Correct 2 ms 2644 KB Output is correct
101 Correct 2 ms 2644 KB Output is correct
102 Correct 1 ms 2664 KB Output is correct
103 Correct 4 ms 2664 KB Output is correct
104 Correct 15 ms 4076 KB Output is correct
105 Correct 33 ms 6256 KB Output is correct
106 Correct 2 ms 2644 KB Output is correct
107 Correct 158 ms 9752 KB Output is correct
108 Correct 83 ms 13132 KB Output is correct
109 Correct 3 ms 2772 KB Output is correct
110 Correct 121 ms 13564 KB Output is correct
111 Correct 146 ms 17340 KB Output is correct
112 Correct 3 ms 2772 KB Output is correct
113 Correct 195 ms 27876 KB Output is correct
114 Correct 154 ms 10244 KB Output is correct
115 Incorrect 367 ms 10268 KB Output isn't correct
116 Halted 0 ms 0 KB -