답안 #97361 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
97361	2019-02-15T13:12:29 Z	TuGSGeReL	경주 (Race) (IOI11_race)	C++14	100 / 100	2730 ms	47964 KB

race

#include "race.h"
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;
#define ll long long
#define mp make_pair
#define pub push_back
#define pob pop_back()
#define ss second
#define ff first
#define mt make_tuple
#define pof pop_front()
#define fbo find_by_order
#define ook order_of_key
typedef tree<int, null_type, less_equal<int>, rb_tree_tag, tree_order_statistics_node_update> indexed_set;
int i,ans=1e9,c[200001],used[200001];
vector<pair<int,int> >v[200001];
map<int,int>xox,yoy;
inline void dfs(int u, int par){
	for(auto x : v[u]) if(x.ff!=par) dfs(x.ff,u); 
	c[par]+=c[u];
}
inline void dfs1(int u, int parr, int s, int d){
	if(yoy.find(s) == yoy.end())yoy[s]=d;
	else yoy[s]=min(yoy[s],d);
	for(auto x : v[u]){
		if(x.ff!=parr && !used[x.ff]) dfs1(x.ff,u,s+x.ss,d+1);
	}
}
inline int fnd(int u , int sz){
	for(auto x : v[u]){
		if(!used[x.ff] && c[x.ff]>sz){
			c[u]-=c[x.ff];
			c[x.ff]+=c[u];
			return fnd(x.ff,sz);
		}
	}
	return u;
}
inline void solve(int at, int k){
	at=fnd(at,c[at]/2);
	used[at]=1;
	xox.clear();
	xox[0]=0;
	for(auto z : v[at]){
		if(used[z.ff]) continue;
		yoy.clear();
		dfs1(z.ff,at,z.ss,1);
		for(auto haha : yoy) if(xox.find(k-haha.ff)!=xox.end()) ans=min(ans,haha.ss+xox[k-haha.ff]);
		for(auto lol : yoy){
			if(xox.find(lol.ff)==xox.end()) xox[lol.ff]=lol.ss;
			else xox[lol.ff]=min(xox[lol.ff],lol.ss);
		}
	}
	for(auto hha : v[at]) if(!used[hha.ff]) solve(hha.ff,k);
}
int best_path(int N, int K, int H[][2], int L[]) {
	for(i=0;i<N-1;i++){
		c[i]=1;
		v[H[i][0]].pub(mp(H[i][1],L[i]));
		v[H[i][1]].pub(mp(H[i][0],L[i]));
	}
	c[N-1]=1;
	dfs(0,0);
	solve(0,K);
	if(ans==1e9) ans=-1;
	return ans;
}

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	4992 KB	Output is correct
2	Correct	7 ms	5120 KB	Output is correct
3	Correct	5 ms	4992 KB	Output is correct
4	Correct	7 ms	5120 KB	Output is correct
5	Correct	6 ms	5092 KB	Output is correct
6	Correct	7 ms	5120 KB	Output is correct
7	Correct	8 ms	4992 KB	Output is correct
8	Correct	6 ms	4992 KB	Output is correct
9	Correct	7 ms	4992 KB	Output is correct
10	Correct	6 ms	4992 KB	Output is correct
11	Correct	7 ms	5032 KB	Output is correct
12	Correct	7 ms	5120 KB	Output is correct
13	Correct	8 ms	4992 KB	Output is correct
14	Correct	7 ms	5120 KB	Output is correct
15	Correct	5 ms	4992 KB	Output is correct
16	Correct	9 ms	5120 KB	Output is correct
17	Correct	7 ms	4992 KB	Output is correct
18	Correct	8 ms	5120 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	4992 KB	Output is correct
2	Correct	7 ms	5120 KB	Output is correct
3	Correct	5 ms	4992 KB	Output is correct
4	Correct	7 ms	5120 KB	Output is correct
5	Correct	6 ms	5092 KB	Output is correct
6	Correct	7 ms	5120 KB	Output is correct
7	Correct	8 ms	4992 KB	Output is correct
8	Correct	6 ms	4992 KB	Output is correct
9	Correct	7 ms	4992 KB	Output is correct
10	Correct	6 ms	4992 KB	Output is correct
11	Correct	7 ms	5032 KB	Output is correct
12	Correct	7 ms	5120 KB	Output is correct
13	Correct	8 ms	4992 KB	Output is correct
14	Correct	7 ms	5120 KB	Output is correct
15	Correct	5 ms	4992 KB	Output is correct
16	Correct	9 ms	5120 KB	Output is correct
17	Correct	7 ms	4992 KB	Output is correct
18	Correct	8 ms	5120 KB	Output is correct
19	Correct	8 ms	5120 KB	Output is correct
20	Correct	7 ms	5092 KB	Output is correct
21	Correct	11 ms	5164 KB	Output is correct
22	Correct	11 ms	5120 KB	Output is correct
23	Correct	5 ms	5248 KB	Output is correct
24	Correct	10 ms	5248 KB	Output is correct
25	Correct	10 ms	5248 KB	Output is correct
26	Correct	9 ms	5248 KB	Output is correct
27	Correct	10 ms	5084 KB	Output is correct
28	Correct	10 ms	5248 KB	Output is correct
29	Correct	11 ms	5376 KB	Output is correct
30	Correct	9 ms	5248 KB	Output is correct
31	Correct	12 ms	5248 KB	Output is correct
32	Correct	11 ms	5248 KB	Output is correct
33	Correct	11 ms	5248 KB	Output is correct
34	Correct	11 ms	5248 KB	Output is correct
35	Correct	9 ms	5120 KB	Output is correct
36	Correct	12 ms	5248 KB	Output is correct
37	Correct	10 ms	5120 KB	Output is correct
38	Correct	10 ms	5248 KB	Output is correct

Subtask #3
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	4992 KB	Output is correct
2	Correct	7 ms	5120 KB	Output is correct
3	Correct	5 ms	4992 KB	Output is correct
4	Correct	7 ms	5120 KB	Output is correct
5	Correct	6 ms	5092 KB	Output is correct
6	Correct	7 ms	5120 KB	Output is correct
7	Correct	8 ms	4992 KB	Output is correct
8	Correct	6 ms	4992 KB	Output is correct
9	Correct	7 ms	4992 KB	Output is correct
10	Correct	6 ms	4992 KB	Output is correct
11	Correct	7 ms	5032 KB	Output is correct
12	Correct	7 ms	5120 KB	Output is correct
13	Correct	8 ms	4992 KB	Output is correct
14	Correct	7 ms	5120 KB	Output is correct
15	Correct	5 ms	4992 KB	Output is correct
16	Correct	9 ms	5120 KB	Output is correct
17	Correct	7 ms	4992 KB	Output is correct
18	Correct	8 ms	5120 KB	Output is correct
19	Correct	477 ms	10700 KB	Output is correct
20	Correct	533 ms	12124 KB	Output is correct
21	Correct	498 ms	12152 KB	Output is correct
22	Correct	412 ms	12280 KB	Output is correct
23	Correct	619 ms	12576 KB	Output is correct
24	Correct	283 ms	12316 KB	Output is correct
25	Correct	407 ms	15116 KB	Output is correct
26	Correct	119 ms	17024 KB	Output is correct
27	Correct	532 ms	19548 KB	Output is correct
28	Correct	2245 ms	47964 KB	Output is correct
29	Correct	2562 ms	46516 KB	Output is correct
30	Correct	555 ms	19696 KB	Output is correct
31	Correct	641 ms	19892 KB	Output is correct
32	Correct	818 ms	20028 KB	Output is correct
33	Correct	1191 ms	18608 KB	Output is correct
34	Correct	2402 ms	37956 KB	Output is correct

Subtask #4
57.0 / 57.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	4992 KB	Output is correct
2	Correct	7 ms	5120 KB	Output is correct
3	Correct	5 ms	4992 KB	Output is correct
4	Correct	7 ms	5120 KB	Output is correct
5	Correct	6 ms	5092 KB	Output is correct
6	Correct	7 ms	5120 KB	Output is correct
7	Correct	8 ms	4992 KB	Output is correct
8	Correct	6 ms	4992 KB	Output is correct
9	Correct	7 ms	4992 KB	Output is correct
10	Correct	6 ms	4992 KB	Output is correct
11	Correct	7 ms	5032 KB	Output is correct
12	Correct	7 ms	5120 KB	Output is correct
13	Correct	8 ms	4992 KB	Output is correct
14	Correct	7 ms	5120 KB	Output is correct
15	Correct	5 ms	4992 KB	Output is correct
16	Correct	9 ms	5120 KB	Output is correct
17	Correct	7 ms	4992 KB	Output is correct
18	Correct	8 ms	5120 KB	Output is correct
19	Correct	8 ms	5120 KB	Output is correct
20	Correct	7 ms	5092 KB	Output is correct
21	Correct	11 ms	5164 KB	Output is correct
22	Correct	11 ms	5120 KB	Output is correct
23	Correct	5 ms	5248 KB	Output is correct
24	Correct	10 ms	5248 KB	Output is correct
25	Correct	10 ms	5248 KB	Output is correct
26	Correct	9 ms	5248 KB	Output is correct
27	Correct	10 ms	5084 KB	Output is correct
28	Correct	10 ms	5248 KB	Output is correct
29	Correct	11 ms	5376 KB	Output is correct
30	Correct	9 ms	5248 KB	Output is correct
31	Correct	12 ms	5248 KB	Output is correct
32	Correct	11 ms	5248 KB	Output is correct
33	Correct	11 ms	5248 KB	Output is correct
34	Correct	11 ms	5248 KB	Output is correct
35	Correct	9 ms	5120 KB	Output is correct
36	Correct	12 ms	5248 KB	Output is correct
37	Correct	10 ms	5120 KB	Output is correct
38	Correct	10 ms	5248 KB	Output is correct
39	Correct	477 ms	10700 KB	Output is correct
40	Correct	533 ms	12124 KB	Output is correct
41	Correct	498 ms	12152 KB	Output is correct
42	Correct	412 ms	12280 KB	Output is correct
43	Correct	619 ms	12576 KB	Output is correct
44	Correct	283 ms	12316 KB	Output is correct
45	Correct	407 ms	15116 KB	Output is correct
46	Correct	119 ms	17024 KB	Output is correct
47	Correct	532 ms	19548 KB	Output is correct
48	Correct	2245 ms	47964 KB	Output is correct
49	Correct	2562 ms	46516 KB	Output is correct
50	Correct	555 ms	19696 KB	Output is correct
51	Correct	641 ms	19892 KB	Output is correct
52	Correct	818 ms	20028 KB	Output is correct
53	Correct	1191 ms	18608 KB	Output is correct
54	Correct	2402 ms	37956 KB	Output is correct
55	Correct	48 ms	6264 KB	Output is correct
56	Correct	29 ms	5760 KB	Output is correct
57	Correct	208 ms	12280 KB	Output is correct
58	Correct	106 ms	12012 KB	Output is correct
59	Correct	713 ms	26488 KB	Output is correct
60	Correct	2730 ms	46888 KB	Output is correct
61	Correct	703 ms	21124 KB	Output is correct
62	Correct	635 ms	19720 KB	Output is correct
63	Correct	832 ms	19968 KB	Output is correct
64	Correct	2397 ms	29304 KB	Output is correct
65	Correct	2415 ms	39044 KB	Output is correct
66	Correct	2365 ms	43516 KB	Output is correct
67	Correct	397 ms	20324 KB	Output is correct
68	Correct	1508 ms	36088 KB	Output is correct
69	Correct	1637 ms	36488 KB	Output is correct
70	Correct	1519 ms	34808 KB	Output is correct

답안 #97361

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 12.0 / 12.0

Subtask #3 22.0 / 22.0

Subtask #4 57.0 / 57.0

Subtask #1
9.0 / 9.0

Subtask #2
12.0 / 12.0

Subtask #3
22.0 / 22.0

Subtask #4
57.0 / 57.0