oj.uz

Submission #551232

# Submission time Handle Problem Language Result Execution time Memory
551232 2022-04-20T06:10:34 Z Koosha_mv Race (IOI11_race) C++14
100 / 100
 424 ms 52444 KB 
#include <bits/stdc++.h>
using namespace std;
#define dbgv(v) cout<<#v<<" = "; f(i,0,v.size()) cout<<v[i]<<" "; cout<<endl
#define dbga(a,x,y) cout<<#a<<" = "; f(i,x,y) cout<<a[i]<<" "; cout<<endl
#define erorp(x) cout<<#x<<"={"<<x.F<<" , "<<x.S<<"}"<<endl
#define eror(x) cout<<#x<<'='<<(x)<<endl
#define f_(i,a,b) for(int i=a;i>=b;i--)
#define f(i,a,b) for(int i=a;i<b;i++)
#define nb(x) __builtin_popcount(x)
#define all(v) v.begin(),v.end()
#define bit(n,k) (((n)>>(k))&1)
#define Add(x,y) x=(x+y)%mod
#define maxm(a,b) a=max(a,b)
#define minm(a,b) a=min(a,b)
#define lst(x) x[x.size()-1]
#define sz(x) int(x.size())
#define mp make_pair
#define ll long long
#define pb push_back
#define S second
#define F first
#include "race.h"

const int N=1e6+99;

int n,k,cent,ans=N,sz[N],vis[N],res[N];
int a[N][2],b[N];
vector<int> alh;
vector<pair<int,int>> vec,g[N];

void dfs1(int u,int p,int n){
	sz[u]=1;
	for(auto v : g[u]){
		if(p==v.F || vis[v.F]) continue ;
		dfs1(v.F,u,n);
		sz[u]+=sz[v.F];
	}
	if(2*sz[u]>=n && cent==-1) cent=u;
}
void dfs2(int u,int p,int h1,int h2){
	sz[u]=1;
	if(h2<=k){
		minm(ans,h1+res[k-h2]);
		alh.pb(h2);
		vec.pb({h2,h1});
	}
	else h2=k+1;
	for(auto v : g[u]){
		if(p==v.F || vis[v.F]) continue ;
		dfs2(v.F,u,h1+1,h2+v.S);
		sz[u]+=sz[v.F];
	}
}
void solve(int rt,int n){
	cent=-1;
	dfs1(rt,rt,n);
	if(cent==-1) assert(0);
	res[0]=0;
	alh.clear();
	for(auto v : g[cent]){
		if(vis[v.F]) continue ;
		vec.clear();
		dfs2(v.F,cent,1,v.S);
		for(auto p : vec) minm(res[p.F],p.S);
		
	}
	for(auto x : alh) res[x]=N;
	vis[cent]=1;
	for(auto v : g[cent]){
		if(vis[v.F]) continue ;
		solve(v.F,sz[v.F]);
	}
}
int best_path(int _n, int _k,int H[][2],int L[]){
	fill(res,res+N,N);
	n=_n,k=_k;
	f(i,0,n-1){
		int u=H[i][0],v=H[i][1],w=L[i];
		g[u].pb({v,w});
		g[v].pb({u,w});		
	}
	solve(1,n);
	if(ans==N) return -1;
	return ans;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 27664 KB Output is correct
2 Correct 14 ms 27660 KB Output is correct
3 Correct 13 ms 27732 KB Output is correct
4 Correct 14 ms 27732 KB Output is correct
5 Correct 15 ms 27732 KB Output is correct
6 Correct 15 ms 27744 KB Output is correct
7 Correct 17 ms 27628 KB Output is correct
8 Correct 16 ms 27644 KB Output is correct
9 Correct 14 ms 27732 KB Output is correct
10 Correct 16 ms 27732 KB Output is correct
11 Correct 15 ms 27720 KB Output is correct
12 Correct 18 ms 27712 KB Output is correct
13 Correct 14 ms 27732 KB Output is correct
14 Correct 15 ms 27688 KB Output is correct
15 Correct 14 ms 27728 KB Output is correct
16 Correct 14 ms 27724 KB Output is correct
17 Correct 13 ms 27752 KB Output is correct
18 Correct 14 ms 27744 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 27664 KB Output is correct
2 Correct 14 ms 27660 KB Output is correct
3 Correct 13 ms 27732 KB Output is correct
4 Correct 14 ms 27732 KB Output is correct
5 Correct 15 ms 27732 KB Output is correct
6 Correct 15 ms 27744 KB Output is correct
7 Correct 17 ms 27628 KB Output is correct
8 Correct 16 ms 27644 KB Output is correct
9 Correct 14 ms 27732 KB Output is correct
10 Correct 16 ms 27732 KB Output is correct
11 Correct 15 ms 27720 KB Output is correct
12 Correct 18 ms 27712 KB Output is correct
13 Correct 14 ms 27732 KB Output is correct
14 Correct 15 ms 27688 KB Output is correct
15 Correct 14 ms 27728 KB Output is correct
16 Correct 14 ms 27724 KB Output is correct
17 Correct 13 ms 27752 KB Output is correct
18 Correct 14 ms 27744 KB Output is correct
19 Correct 13 ms 27628 KB Output is correct
20 Correct 13 ms 27732 KB Output is correct
21 Correct 14 ms 27732 KB Output is correct
22 Correct 14 ms 27732 KB Output is correct
23 Correct 16 ms 27732 KB Output is correct
24 Correct 15 ms 27732 KB Output is correct
25 Correct 15 ms 27784 KB Output is correct
26 Correct 15 ms 27732 KB Output is correct
27 Correct 15 ms 27800 KB Output is correct
28 Correct 15 ms 27800 KB Output is correct
29 Correct 14 ms 27724 KB Output is correct
30 Correct 14 ms 27692 KB Output is correct
31 Correct 16 ms 27704 KB Output is correct
32 Correct 15 ms 27792 KB Output is correct
33 Correct 15 ms 27796 KB Output is correct
34 Correct 19 ms 27804 KB Output is correct
35 Correct 17 ms 27780 KB Output is correct
36 Correct 15 ms 27812 KB Output is correct
37 Correct 15 ms 27816 KB Output is correct
38 Correct 15 ms 27696 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 27664 KB Output is correct
2 Correct 14 ms 27660 KB Output is correct
3 Correct 13 ms 27732 KB Output is correct
4 Correct 14 ms 27732 KB Output is correct
5 Correct 15 ms 27732 KB Output is correct
6 Correct 15 ms 27744 KB Output is correct
7 Correct 17 ms 27628 KB Output is correct
8 Correct 16 ms 27644 KB Output is correct
9 Correct 14 ms 27732 KB Output is correct
10 Correct 16 ms 27732 KB Output is correct
11 Correct 15 ms 27720 KB Output is correct
12 Correct 18 ms 27712 KB Output is correct
13 Correct 14 ms 27732 KB Output is correct
14 Correct 15 ms 27688 KB Output is correct
15 Correct 14 ms 27728 KB Output is correct
16 Correct 14 ms 27724 KB Output is correct
17 Correct 13 ms 27752 KB Output is correct
18 Correct 14 ms 27744 KB Output is correct
19 Correct 145 ms 33480 KB Output is correct
20 Correct 155 ms 33408 KB Output is correct
21 Correct 139 ms 33860 KB Output is correct
22 Correct 114 ms 34044 KB Output is correct
23 Correct 104 ms 33600 KB Output is correct
24 Correct 70 ms 33472 KB Output is correct
25 Correct 129 ms 39924 KB Output is correct
26 Correct 101 ms 41548 KB Output is correct
27 Correct 176 ms 39216 KB Output is correct
28 Correct 364 ms 52444 KB Output is correct
29 Correct 321 ms 47300 KB Output is correct
30 Correct 199 ms 39172 KB Output is correct
31 Correct 171 ms 39244 KB Output is correct
32 Correct 252 ms 39116 KB Output is correct
33 Correct 221 ms 37968 KB Output is correct
34 Correct 258 ms 38012 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 27664 KB Output is correct
2 Correct 14 ms 27660 KB Output is correct
3 Correct 13 ms 27732 KB Output is correct
4 Correct 14 ms 27732 KB Output is correct
5 Correct 15 ms 27732 KB Output is correct
6 Correct 15 ms 27744 KB Output is correct
7 Correct 17 ms 27628 KB Output is correct
8 Correct 16 ms 27644 KB Output is correct
9 Correct 14 ms 27732 KB Output is correct
10 Correct 16 ms 27732 KB Output is correct
11 Correct 15 ms 27720 KB Output is correct
12 Correct 18 ms 27712 KB Output is correct
13 Correct 14 ms 27732 KB Output is correct
14 Correct 15 ms 27688 KB Output is correct
15 Correct 14 ms 27728 KB Output is correct
16 Correct 14 ms 27724 KB Output is correct
17 Correct 13 ms 27752 KB Output is correct
18 Correct 14 ms 27744 KB Output is correct
19 Correct 13 ms 27628 KB Output is correct
20 Correct 13 ms 27732 KB Output is correct
21 Correct 14 ms 27732 KB Output is correct
22 Correct 14 ms 27732 KB Output is correct
23 Correct 16 ms 27732 KB Output is correct
24 Correct 15 ms 27732 KB Output is correct
25 Correct 15 ms 27784 KB Output is correct
26 Correct 15 ms 27732 KB Output is correct
27 Correct 15 ms 27800 KB Output is correct
28 Correct 15 ms 27800 KB Output is correct
29 Correct 14 ms 27724 KB Output is correct
30 Correct 14 ms 27692 KB Output is correct
31 Correct 16 ms 27704 KB Output is correct
32 Correct 15 ms 27792 KB Output is correct
33 Correct 15 ms 27796 KB Output is correct
34 Correct 19 ms 27804 KB Output is correct
35 Correct 17 ms 27780 KB Output is correct
36 Correct 15 ms 27812 KB Output is correct
37 Correct 15 ms 27816 KB Output is correct
38 Correct 15 ms 27696 KB Output is correct
39 Correct 145 ms 33480 KB Output is correct
40 Correct 155 ms 33408 KB Output is correct
41 Correct 139 ms 33860 KB Output is correct
42 Correct 114 ms 34044 KB Output is correct
43 Correct 104 ms 33600 KB Output is correct
44 Correct 70 ms 33472 KB Output is correct
45 Correct 129 ms 39924 KB Output is correct
46 Correct 101 ms 41548 KB Output is correct
47 Correct 176 ms 39216 KB Output is correct
48 Correct 364 ms 52444 KB Output is correct
49 Correct 321 ms 47300 KB Output is correct
50 Correct 199 ms 39172 KB Output is correct
51 Correct 171 ms 39244 KB Output is correct
52 Correct 252 ms 39116 KB Output is correct
53 Correct 221 ms 37968 KB Output is correct
54 Correct 258 ms 38012 KB Output is correct
55 Correct 21 ms 28384 KB Output is correct
56 Correct 22 ms 28372 KB Output is correct
57 Correct 92 ms 34392 KB Output is correct
58 Correct 46 ms 34604 KB Output is correct
59 Correct 99 ms 41536 KB Output is correct
60 Correct 368 ms 49080 KB Output is correct
61 Correct 173 ms 39380 KB Output is correct
62 Correct 186 ms 40004 KB Output is correct
63 Correct 254 ms 40084 KB Output is correct
64 Correct 403 ms 40548 KB Output is correct
65 Correct 309 ms 39104 KB Output is correct
66 Correct 424 ms 51096 KB Output is correct
67 Correct 140 ms 41144 KB Output is correct
68 Correct 228 ms 39816 KB Output is correct
69 Correct 273 ms 39860 KB Output is correct
70 Correct 218 ms 39256 KB Output is correct