oj.uz

Submission #551231

# Submission time Handle Problem Language Result Execution time Memory
551231 2022-04-20T06:09:46 Z Koosha_mv Race (IOI11_race) C++14
100 / 100
 419 ms 52532 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);
	//cout<<rt<<" "<<n<<endl;
	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);
		//eror(sz[v.F]);
		for(auto p : vec){
			minm(res[p.F],p.S);
		}
	}
	for(auto x : alh) res[x]=N;
	vis[cent]=1;
	//eror(cent);
	for(auto v : g[cent]){
		if(vis[v.F]) continue ;
		//cout<<v.F<<" "<<sz[v.F]<<" - "<<rt<<" "<<cent<<endl;
		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;
}

/*
int32_t main(){
	int n,k;
	cin>>n>>k;
	f(i,0,n-1) cin>>a[i][0]>>a[i][1];
	f(i,0,n-1) cin>>b[i];
	cout<<best_path(n,k,a,b);
}
*/
/*
11 12
0 1
0 2
2 3
3 4
4 5
0 6
6 7
6 8
8 9
8 10
3
4
5
4
6
3
2
5
6
7
*/

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 27704 KB Output is correct
2 Correct 15 ms 27656 KB Output is correct
3 Correct 15 ms 27632 KB Output is correct
4 Correct 17 ms 27732 KB Output is correct
5 Correct 16 ms 27684 KB Output is correct
6 Correct 15 ms 27732 KB Output is correct
7 Correct 18 ms 27732 KB Output is correct
8 Correct 15 ms 27732 KB Output is correct
9 Correct 16 ms 27732 KB Output is correct
10 Correct 14 ms 27732 KB Output is correct
11 Correct 16 ms 27676 KB Output is correct
12 Correct 15 ms 27732 KB Output is correct
13 Correct 15 ms 27732 KB Output is correct
14 Correct 15 ms 27684 KB Output is correct
15 Correct 15 ms 27748 KB Output is correct
16 Correct 15 ms 27636 KB Output is correct
17 Correct 14 ms 27732 KB Output is correct
18 Correct 15 ms 27732 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 27704 KB Output is correct
2 Correct 15 ms 27656 KB Output is correct
3 Correct 15 ms 27632 KB Output is correct
4 Correct 17 ms 27732 KB Output is correct
5 Correct 16 ms 27684 KB Output is correct
6 Correct 15 ms 27732 KB Output is correct
7 Correct 18 ms 27732 KB Output is correct
8 Correct 15 ms 27732 KB Output is correct
9 Correct 16 ms 27732 KB Output is correct
10 Correct 14 ms 27732 KB Output is correct
11 Correct 16 ms 27676 KB Output is correct
12 Correct 15 ms 27732 KB Output is correct
13 Correct 15 ms 27732 KB Output is correct
14 Correct 15 ms 27684 KB Output is correct
15 Correct 15 ms 27748 KB Output is correct
16 Correct 15 ms 27636 KB Output is correct
17 Correct 14 ms 27732 KB Output is correct
18 Correct 15 ms 27732 KB Output is correct
19 Correct 15 ms 27728 KB Output is correct
20 Correct 14 ms 27668 KB Output is correct
21 Correct 19 ms 27732 KB Output is correct
22 Correct 19 ms 27796 KB Output is correct
23 Correct 16 ms 27700 KB Output is correct
24 Correct 15 ms 27688 KB Output is correct
25 Correct 16 ms 27812 KB Output is correct
26 Correct 15 ms 27732 KB Output is correct
27 Correct 16 ms 27756 KB Output is correct
28 Correct 16 ms 27732 KB Output is correct
29 Correct 16 ms 27712 KB Output is correct
30 Correct 16 ms 27732 KB Output is correct
31 Correct 16 ms 27732 KB Output is correct
32 Correct 18 ms 27680 KB Output is correct
33 Correct 17 ms 27800 KB Output is correct
34 Correct 17 ms 27732 KB Output is correct
35 Correct 16 ms 27772 KB Output is correct
36 Correct 16 ms 27732 KB Output is correct
37 Correct 16 ms 27732 KB Output is correct
38 Correct 16 ms 27748 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 27704 KB Output is correct
2 Correct 15 ms 27656 KB Output is correct
3 Correct 15 ms 27632 KB Output is correct
4 Correct 17 ms 27732 KB Output is correct
5 Correct 16 ms 27684 KB Output is correct
6 Correct 15 ms 27732 KB Output is correct
7 Correct 18 ms 27732 KB Output is correct
8 Correct 15 ms 27732 KB Output is correct
9 Correct 16 ms 27732 KB Output is correct
10 Correct 14 ms 27732 KB Output is correct
11 Correct 16 ms 27676 KB Output is correct
12 Correct 15 ms 27732 KB Output is correct
13 Correct 15 ms 27732 KB Output is correct
14 Correct 15 ms 27684 KB Output is correct
15 Correct 15 ms 27748 KB Output is correct
16 Correct 15 ms 27636 KB Output is correct
17 Correct 14 ms 27732 KB Output is correct
18 Correct 15 ms 27732 KB Output is correct
19 Correct 138 ms 33416 KB Output is correct
20 Correct 156 ms 33440 KB Output is correct
21 Correct 147 ms 33912 KB Output is correct
22 Correct 123 ms 34064 KB Output is correct
23 Correct 99 ms 33592 KB Output is correct
24 Correct 89 ms 33432 KB Output is correct
25 Correct 158 ms 39920 KB Output is correct
26 Correct 103 ms 41588 KB Output is correct
27 Correct 179 ms 39260 KB Output is correct
28 Correct 390 ms 52532 KB Output is correct
29 Correct 349 ms 47296 KB Output is correct
30 Correct 196 ms 39320 KB Output is correct
31 Correct 175 ms 39256 KB Output is correct
32 Correct 268 ms 39108 KB Output is correct
33 Correct 250 ms 38184 KB Output is correct
34 Correct 246 ms 37932 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 27704 KB Output is correct
2 Correct 15 ms 27656 KB Output is correct
3 Correct 15 ms 27632 KB Output is correct
4 Correct 17 ms 27732 KB Output is correct
5 Correct 16 ms 27684 KB Output is correct
6 Correct 15 ms 27732 KB Output is correct
7 Correct 18 ms 27732 KB Output is correct
8 Correct 15 ms 27732 KB Output is correct
9 Correct 16 ms 27732 KB Output is correct
10 Correct 14 ms 27732 KB Output is correct
11 Correct 16 ms 27676 KB Output is correct
12 Correct 15 ms 27732 KB Output is correct
13 Correct 15 ms 27732 KB Output is correct
14 Correct 15 ms 27684 KB Output is correct
15 Correct 15 ms 27748 KB Output is correct
16 Correct 15 ms 27636 KB Output is correct
17 Correct 14 ms 27732 KB Output is correct
18 Correct 15 ms 27732 KB Output is correct
19 Correct 15 ms 27728 KB Output is correct
20 Correct 14 ms 27668 KB Output is correct
21 Correct 19 ms 27732 KB Output is correct
22 Correct 19 ms 27796 KB Output is correct
23 Correct 16 ms 27700 KB Output is correct
24 Correct 15 ms 27688 KB Output is correct
25 Correct 16 ms 27812 KB Output is correct
26 Correct 15 ms 27732 KB Output is correct
27 Correct 16 ms 27756 KB Output is correct
28 Correct 16 ms 27732 KB Output is correct
29 Correct 16 ms 27712 KB Output is correct
30 Correct 16 ms 27732 KB Output is correct
31 Correct 16 ms 27732 KB Output is correct
32 Correct 18 ms 27680 KB Output is correct
33 Correct 17 ms 27800 KB Output is correct
34 Correct 17 ms 27732 KB Output is correct
35 Correct 16 ms 27772 KB Output is correct
36 Correct 16 ms 27732 KB Output is correct
37 Correct 16 ms 27732 KB Output is correct
38 Correct 16 ms 27748 KB Output is correct
39 Correct 138 ms 33416 KB Output is correct
40 Correct 156 ms 33440 KB Output is correct
41 Correct 147 ms 33912 KB Output is correct
42 Correct 123 ms 34064 KB Output is correct
43 Correct 99 ms 33592 KB Output is correct
44 Correct 89 ms 33432 KB Output is correct
45 Correct 158 ms 39920 KB Output is correct
46 Correct 103 ms 41588 KB Output is correct
47 Correct 179 ms 39260 KB Output is correct
48 Correct 390 ms 52532 KB Output is correct
49 Correct 349 ms 47296 KB Output is correct
50 Correct 196 ms 39320 KB Output is correct
51 Correct 175 ms 39256 KB Output is correct
52 Correct 268 ms 39108 KB Output is correct
53 Correct 250 ms 38184 KB Output is correct
54 Correct 246 ms 37932 KB Output is correct
55 Correct 22 ms 28372 KB Output is correct
56 Correct 24 ms 28400 KB Output is correct
57 Correct 94 ms 34388 KB Output is correct
58 Correct 46 ms 34500 KB Output is correct
59 Correct 103 ms 41556 KB Output is correct
60 Correct 381 ms 49080 KB Output is correct
61 Correct 177 ms 39396 KB Output is correct
62 Correct 193 ms 40088 KB Output is correct
63 Correct 272 ms 40084 KB Output is correct
64 Correct 410 ms 40588 KB Output is correct
65 Correct 387 ms 39036 KB Output is correct
66 Correct 419 ms 51132 KB Output is correct
67 Correct 138 ms 41244 KB Output is correct
68 Correct 246 ms 39716 KB Output is correct
69 Correct 239 ms 39908 KB Output is correct
70 Correct 240 ms 39276 KB Output is correct