oj.uz

Submission #812622

# Submission time Handle Problem Language Result Execution time Memory
812622 2023-08-07T09:38:28 Z I_Love_EliskaM_ Dreaming (IOI13_dreaming) C++17
24 / 100
 1000 ms 22196 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,30) {

		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();
		vector<pi> z;
		forn(i,k) {
			d[c[i]]=0;
			dfs(c[i],-1);
			auto q=find(c[i],-1,0);
			swap(q.f,q.s);
			z.pb(q);
		}
		sort(all(z));
		forn(i,k/2) {
			int u=z[i].s, v=z[(k+1)/2+i].s;
			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

# Verdict Execution time Memory Grader output
1 Correct 578 ms 22196 KB Output is correct
2 Correct 539 ms 17608 KB Output is correct
3 Correct 296 ms 15340 KB Output is correct
4 Correct 59 ms 5392 KB Output is correct
5 Correct 50 ms 3924 KB Output is correct
6 Correct 116 ms 5984 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 231 ms 9252 KB Output is correct
9 Correct 294 ms 12616 KB Output is correct
10 Correct 3 ms 2772 KB Output is correct
11 Correct 444 ms 12600 KB Output is correct
12 Correct 553 ms 16524 KB Output is correct
13 Correct 5 ms 2772 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 2 ms 2644 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 1 ms 2644 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 2 ms 2644 KB Output is correct
13 Correct 2 ms 2644 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 1 ms 2644 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 1 ms 2644 KB Output is correct
22 Correct 2 ms 2644 KB Output is correct
23 Correct 1 ms 2644 KB Output is correct
24 Correct 1 ms 2644 KB Output is correct
25 Correct 2 ms 2644 KB Output is correct

Subtask #3
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 578 ms 22196 KB Output is correct
2 Correct 539 ms 17608 KB Output is correct
3 Correct 296 ms 15340 KB Output is correct
4 Correct 59 ms 5392 KB Output is correct
5 Correct 50 ms 3924 KB Output is correct
6 Correct 116 ms 5984 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 231 ms 9252 KB Output is correct
9 Correct 294 ms 12616 KB Output is correct
10 Correct 3 ms 2772 KB Output is correct
11 Correct 444 ms 12600 KB Output is correct
12 Correct 553 ms 16524 KB Output is correct
13 Correct 5 ms 2772 KB Output is correct
14 Correct 1 ms 2644 KB Output is correct
15 Correct 2 ms 2644 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 1 ms 2644 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 2 ms 2644 KB Output is correct
26 Correct 2 ms 2644 KB Output is correct
27 Correct 2 ms 2644 KB Output is correct
28 Correct 1 ms 2644 KB Output is correct
29 Correct 1 ms 2644 KB Output is correct
30 Correct 1 ms 2644 KB Output is correct
31 Correct 1 ms 2644 KB Output is correct
32 Correct 1 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 2 ms 2644 KB Output is correct
36 Correct 1 ms 2644 KB Output is correct
37 Correct 1 ms 2644 KB Output is correct
38 Correct 2 ms 2644 KB Output is correct
39 Correct 589 ms 22168 KB Output is correct
40 Correct 534 ms 17584 KB Output is correct
41 Correct 311 ms 15340 KB Output is correct
42 Correct 59 ms 5372 KB Output is correct
43 Correct 2 ms 2644 KB Output is correct
44 Correct 1 ms 2644 KB Output is correct
45 Correct 2 ms 2644 KB Output is correct
46 Correct 2 ms 2644 KB Output is correct
47 Correct 1 ms 2644 KB Output is correct
48 Correct 2 ms 2588 KB Output is correct
49 Correct 1 ms 2644 KB Output is correct
50 Correct 2 ms 2644 KB Output is correct
51 Correct 2 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 2 ms 2644 KB Output is correct
57 Correct 561 ms 9924 KB Output is correct
58 Correct 556 ms 9880 KB Output is correct
59 Correct 618 ms 10336 KB Output is correct
60 Correct 648 ms 9880 KB Output is correct
61 Correct 576 ms 10088 KB Output is correct
62 Correct 580 ms 10092 KB Output is correct
63 Correct 540 ms 9928 KB Output is correct
64 Correct 554 ms 10024 KB Output is correct
65 Correct 550 ms 9924 KB Output is correct
66 Correct 531 ms 9948 KB Output is correct
67 Correct 615 ms 9920 KB Output is correct
68 Correct 612 ms 9908 KB Output is correct
69 Correct 620 ms 9824 KB Output is correct
70 Correct 587 ms 9800 KB Output is correct
71 Correct 1 ms 2644 KB Output is correct
72 Correct 21 ms 2940 KB Output is correct
73 Correct 17 ms 2940 KB Output is correct
74 Correct 13 ms 2900 KB Output is correct
75 Correct 14 ms 2908 KB Output is correct
76 Correct 12 ms 2916 KB Output is correct
77 Correct 12 ms 2900 KB Output is correct
78 Correct 16 ms 2928 KB Output is correct
79 Correct 13 ms 2900 KB Output is correct
80 Correct 700 ms 10188 KB Output is correct
81 Correct 851 ms 10168 KB Output is correct
82 Correct 664 ms 10096 KB Output is correct
83 Correct 651 ms 9704 KB Output is correct
84 Correct 8 ms 2772 KB Output is correct
85 Correct 7 ms 2864 KB Output is correct
86 Correct 9 ms 2772 KB Output is correct
87 Correct 15 ms 2772 KB Output is correct
88 Correct 11 ms 2772 KB Output is correct
89 Correct 11 ms 2900 KB Output is correct
90 Correct 12 ms 2904 KB Output is correct
91 Correct 14 ms 2920 KB Output is correct
92 Correct 12 ms 2904 KB Output is correct
93 Correct 12 ms 2900 KB Output is correct
94 Correct 2 ms 2644 KB Output is correct
95 Correct 1 ms 2644 KB Output is correct
96 Correct 2 ms 2644 KB Output is correct
97 Correct 2 ms 2644 KB Output is correct
98 Correct 2 ms 2644 KB Output is correct
99 Correct 1 ms 2644 KB Output is correct
100 Correct 1 ms 2644 KB Output is correct
101 Correct 2 ms 2644 KB Output is correct
102 Correct 1 ms 2644 KB Output is correct
103 Correct 2 ms 2644 KB Output is correct
104 Correct 56 ms 3924 KB Output is correct
105 Correct 132 ms 5988 KB Output is correct
106 Correct 4 ms 2644 KB Output is correct
107 Correct 265 ms 9520 KB Output is correct
108 Correct 321 ms 13140 KB Output is correct
109 Correct 4 ms 2776 KB Output is correct
110 Correct 474 ms 13772 KB Output is correct
111 Correct 670 ms 17768 KB Output is correct
112 Correct 5 ms 2772 KB Output is correct
113 Execution timed out 1075 ms 20484 KB Time limit exceeded
114 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 341 ms 9744 KB Output is correct
2 Correct 375 ms 9812 KB Output is correct
3 Correct 320 ms 9808 KB Output is correct
4 Correct 440 ms 9820 KB Output is correct
5 Correct 305 ms 9796 KB Output is correct
6 Correct 408 ms 10188 KB Output is correct
7 Correct 346 ms 10048 KB Output is correct
8 Correct 295 ms 9448 KB Output is correct
9 Correct 322 ms 9408 KB Output is correct
10 Correct 330 ms 9984 KB Output is correct
11 Incorrect 2 ms 2644 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 2 ms 2644 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 1 ms 2644 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 2 ms 2644 KB Output is correct
13 Correct 2 ms 2644 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 1 ms 2644 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 1 ms 2644 KB Output is correct
22 Correct 2 ms 2644 KB Output is correct
23 Correct 1 ms 2644 KB Output is correct
24 Correct 1 ms 2644 KB Output is correct
25 Correct 2 ms 2644 KB Output is correct
26 Correct 6 ms 2644 KB Output is correct
27 Correct 8 ms 2772 KB Output is correct
28 Correct 12 ms 2948 KB Output is correct
29 Incorrect 4 ms 2644 KB Output isn't correct
30 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 578 ms 22196 KB Output is correct
2 Correct 539 ms 17608 KB Output is correct
3 Correct 296 ms 15340 KB Output is correct
4 Correct 59 ms 5392 KB Output is correct
5 Correct 50 ms 3924 KB Output is correct
6 Correct 116 ms 5984 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 231 ms 9252 KB Output is correct
9 Correct 294 ms 12616 KB Output is correct
10 Correct 3 ms 2772 KB Output is correct
11 Correct 444 ms 12600 KB Output is correct
12 Correct 553 ms 16524 KB Output is correct
13 Correct 5 ms 2772 KB Output is correct
14 Correct 1 ms 2644 KB Output is correct
15 Correct 2 ms 2644 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 1 ms 2644 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 2 ms 2644 KB Output is correct
26 Correct 2 ms 2644 KB Output is correct
27 Correct 2 ms 2644 KB Output is correct
28 Correct 1 ms 2644 KB Output is correct
29 Correct 1 ms 2644 KB Output is correct
30 Correct 1 ms 2644 KB Output is correct
31 Correct 1 ms 2644 KB Output is correct
32 Correct 1 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 2 ms 2644 KB Output is correct
36 Correct 1 ms 2644 KB Output is correct
37 Correct 1 ms 2644 KB Output is correct
38 Correct 2 ms 2644 KB Output is correct
39 Correct 589 ms 22168 KB Output is correct
40 Correct 534 ms 17584 KB Output is correct
41 Correct 311 ms 15340 KB Output is correct
42 Correct 59 ms 5372 KB Output is correct
43 Correct 2 ms 2644 KB Output is correct
44 Correct 1 ms 2644 KB Output is correct
45 Correct 2 ms 2644 KB Output is correct
46 Correct 2 ms 2644 KB Output is correct
47 Correct 1 ms 2644 KB Output is correct
48 Correct 2 ms 2588 KB Output is correct
49 Correct 1 ms 2644 KB Output is correct
50 Correct 2 ms 2644 KB Output is correct
51 Correct 2 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 2 ms 2644 KB Output is correct
57 Correct 561 ms 9924 KB Output is correct
58 Correct 556 ms 9880 KB Output is correct
59 Correct 618 ms 10336 KB Output is correct
60 Correct 648 ms 9880 KB Output is correct
61 Correct 576 ms 10088 KB Output is correct
62 Correct 580 ms 10092 KB Output is correct
63 Correct 540 ms 9928 KB Output is correct
64 Correct 554 ms 10024 KB Output is correct
65 Correct 550 ms 9924 KB Output is correct
66 Correct 531 ms 9948 KB Output is correct
67 Correct 615 ms 9920 KB Output is correct
68 Correct 612 ms 9908 KB Output is correct
69 Correct 620 ms 9824 KB Output is correct
70 Correct 587 ms 9800 KB Output is correct
71 Correct 1 ms 2644 KB Output is correct
72 Correct 21 ms 2940 KB Output is correct
73 Correct 17 ms 2940 KB Output is correct
74 Correct 13 ms 2900 KB Output is correct
75 Correct 14 ms 2908 KB Output is correct
76 Correct 12 ms 2916 KB Output is correct
77 Correct 12 ms 2900 KB Output is correct
78 Correct 16 ms 2928 KB Output is correct
79 Correct 13 ms 2900 KB Output is correct
80 Correct 700 ms 10188 KB Output is correct
81 Correct 851 ms 10168 KB Output is correct
82 Correct 664 ms 10096 KB Output is correct
83 Correct 651 ms 9704 KB Output is correct
84 Correct 8 ms 2772 KB Output is correct
85 Correct 7 ms 2864 KB Output is correct
86 Correct 9 ms 2772 KB Output is correct
87 Correct 15 ms 2772 KB Output is correct
88 Correct 11 ms 2772 KB Output is correct
89 Correct 11 ms 2900 KB Output is correct
90 Correct 12 ms 2904 KB Output is correct
91 Correct 14 ms 2920 KB Output is correct
92 Correct 12 ms 2904 KB Output is correct
93 Correct 12 ms 2900 KB Output is correct
94 Correct 2 ms 2644 KB Output is correct
95 Correct 1 ms 2644 KB Output is correct
96 Correct 2 ms 2644 KB Output is correct
97 Correct 2 ms 2644 KB Output is correct
98 Correct 2 ms 2644 KB Output is correct
99 Correct 1 ms 2644 KB Output is correct
100 Correct 1 ms 2644 KB Output is correct
101 Correct 2 ms 2644 KB Output is correct
102 Correct 1 ms 2644 KB Output is correct
103 Correct 2 ms 2644 KB Output is correct
104 Correct 56 ms 3924 KB Output is correct
105 Correct 132 ms 5988 KB Output is correct
106 Correct 4 ms 2644 KB Output is correct
107 Correct 265 ms 9520 KB Output is correct
108 Correct 321 ms 13140 KB Output is correct
109 Correct 4 ms 2776 KB Output is correct
110 Correct 474 ms 13772 KB Output is correct
111 Correct 670 ms 17768 KB Output is correct
112 Correct 5 ms 2772 KB Output is correct
113 Execution timed out 1075 ms 20484 KB Time limit exceeded
114 Halted 0 ms 0 KB -