답안 #753824

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
753824	2023-06-06T06:41:59 Z	MetalPower	경주 (Race) (IOI11_race)	C++14	100 / 100	441 ms	108036 KB

race

#include "race.h"

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define pii pair<int, int>
#define fi first
#define se second

const int MX = 2e5 + 10;
const int INF = 1e9;

int _K, off[MX], ans = INF; ll dep[MX];
map<ll, int>* dp[MX];
vector<pii> adj[MX];

void ae(int u, int v, int w){
	adj[u].push_back({v, w});
	adj[v].push_back({u, w});
}

void chmin(int& a, int b){
	if(b < a) a = b;
}

void add(int u, int v, int cdep){ // add dp of v to dp of u
	if(dp[u] -> size() < dp[v] -> size()) swap(dp[u], dp[v]), swap(off[u], off[v]);
	for(pii x : (*dp[v])){
		int len = _K + 2 * cdep - x.fi;
		if(dp[u] -> count(len)) chmin(ans, x.se + off[v] + (*dp[u])[len] + off[u]);
	}
	for(pii x : (*dp[v])){
		if(dp[u] -> count(x.fi)) chmin((*dp[u])[x.fi], x.se + off[v] - off[u]);
		else (*dp[u])[x.fi] = x.se + off[v] - off[u];
	}
}

void dfs(int u, int v){

	dp[u] = new map<ll, int>();
	(*dp[u])[dep[u]] = 0;
	off[u] = 0;

	for(pii nxt : adj[u]){
		if(nxt.fi == v) continue;
		dep[nxt.fi] = dep[u] + nxt.se;
		dfs(nxt.fi, u);
		off[nxt.fi]++;
		add(u, nxt.fi, dep[u]);
	}
}

int best_path(int N, int K, int H[][2], int L[]){
	_K = K;
	for(int i = 0; i < N - 1; i++) ae(H[i][0], H[i][1], L[i]);
	dfs(0, -1);
	if(ans != INF) return ans; 
	else return -1;
}

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	5016 KB	Output is correct
2	Correct	3 ms	5016 KB	Output is correct
3	Correct	3 ms	5028 KB	Output is correct
4	Correct	3 ms	5024 KB	Output is correct
5	Correct	3 ms	5012 KB	Output is correct
6	Correct	3 ms	5012 KB	Output is correct
7	Correct	3 ms	5020 KB	Output is correct
8	Correct	3 ms	4948 KB	Output is correct
9	Correct	4 ms	5024 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	3 ms	5020 KB	Output is correct
12	Correct	3 ms	4948 KB	Output is correct
13	Correct	4 ms	4948 KB	Output is correct
14	Correct	3 ms	5020 KB	Output is correct
15	Correct	3 ms	4948 KB	Output is correct
16	Correct	3 ms	4948 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	4 ms	5020 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	5016 KB	Output is correct
2	Correct	3 ms	5016 KB	Output is correct
3	Correct	3 ms	5028 KB	Output is correct
4	Correct	3 ms	5024 KB	Output is correct
5	Correct	3 ms	5012 KB	Output is correct
6	Correct	3 ms	5012 KB	Output is correct
7	Correct	3 ms	5020 KB	Output is correct
8	Correct	3 ms	4948 KB	Output is correct
9	Correct	4 ms	5024 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	3 ms	5020 KB	Output is correct
12	Correct	3 ms	4948 KB	Output is correct
13	Correct	4 ms	4948 KB	Output is correct
14	Correct	3 ms	5020 KB	Output is correct
15	Correct	3 ms	4948 KB	Output is correct
16	Correct	3 ms	4948 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	4 ms	5020 KB	Output is correct
19	Correct	3 ms	5016 KB	Output is correct
20	Correct	3 ms	5020 KB	Output is correct
21	Correct	4 ms	5332 KB	Output is correct
22	Correct	4 ms	5332 KB	Output is correct
23	Correct	5 ms	5332 KB	Output is correct
24	Correct	4 ms	5332 KB	Output is correct
25	Correct	4 ms	5332 KB	Output is correct
26	Correct	4 ms	5332 KB	Output is correct
27	Correct	4 ms	5152 KB	Output is correct
28	Correct	4 ms	5416 KB	Output is correct
29	Correct	5 ms	5332 KB	Output is correct
30	Correct	4 ms	5416 KB	Output is correct
31	Correct	4 ms	5332 KB	Output is correct
32	Correct	4 ms	5332 KB	Output is correct
33	Correct	5 ms	5332 KB	Output is correct
34	Correct	5 ms	5292 KB	Output is correct
35	Correct	4 ms	5332 KB	Output is correct
36	Correct	4 ms	5204 KB	Output is correct
37	Correct	4 ms	5204 KB	Output is correct
38	Correct	3 ms	5332 KB	Output is correct

Subtask #3
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	5016 KB	Output is correct
2	Correct	3 ms	5016 KB	Output is correct
3	Correct	3 ms	5028 KB	Output is correct
4	Correct	3 ms	5024 KB	Output is correct
5	Correct	3 ms	5012 KB	Output is correct
6	Correct	3 ms	5012 KB	Output is correct
7	Correct	3 ms	5020 KB	Output is correct
8	Correct	3 ms	4948 KB	Output is correct
9	Correct	4 ms	5024 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	3 ms	5020 KB	Output is correct
12	Correct	3 ms	4948 KB	Output is correct
13	Correct	4 ms	4948 KB	Output is correct
14	Correct	3 ms	5020 KB	Output is correct
15	Correct	3 ms	4948 KB	Output is correct
16	Correct	3 ms	4948 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	4 ms	5020 KB	Output is correct
19	Correct	109 ms	34944 KB	Output is correct
20	Correct	112 ms	35144 KB	Output is correct
21	Correct	159 ms	34696 KB	Output is correct
22	Correct	106 ms	34296 KB	Output is correct
23	Correct	136 ms	47124 KB	Output is correct
24	Correct	135 ms	37772 KB	Output is correct
25	Correct	161 ms	30672 KB	Output is correct
26	Correct	58 ms	34528 KB	Output is correct
27	Correct	200 ms	53148 KB	Output is correct
28	Correct	328 ms	76628 KB	Output is correct
29	Correct	279 ms	76072 KB	Output is correct
30	Correct	182 ms	53148 KB	Output is correct
31	Correct	198 ms	53220 KB	Output is correct
32	Correct	265 ms	53180 KB	Output is correct
33	Correct	256 ms	57956 KB	Output is correct
34	Correct	335 ms	89824 KB	Output is correct

Subtask #4
57.0 / 57.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	5016 KB	Output is correct
2	Correct	3 ms	5016 KB	Output is correct
3	Correct	3 ms	5028 KB	Output is correct
4	Correct	3 ms	5024 KB	Output is correct
5	Correct	3 ms	5012 KB	Output is correct
6	Correct	3 ms	5012 KB	Output is correct
7	Correct	3 ms	5020 KB	Output is correct
8	Correct	3 ms	4948 KB	Output is correct
9	Correct	4 ms	5024 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	3 ms	5020 KB	Output is correct
12	Correct	3 ms	4948 KB	Output is correct
13	Correct	4 ms	4948 KB	Output is correct
14	Correct	3 ms	5020 KB	Output is correct
15	Correct	3 ms	4948 KB	Output is correct
16	Correct	3 ms	4948 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	4 ms	5020 KB	Output is correct
19	Correct	3 ms	5016 KB	Output is correct
20	Correct	3 ms	5020 KB	Output is correct
21	Correct	4 ms	5332 KB	Output is correct
22	Correct	4 ms	5332 KB	Output is correct
23	Correct	5 ms	5332 KB	Output is correct
24	Correct	4 ms	5332 KB	Output is correct
25	Correct	4 ms	5332 KB	Output is correct
26	Correct	4 ms	5332 KB	Output is correct
27	Correct	4 ms	5152 KB	Output is correct
28	Correct	4 ms	5416 KB	Output is correct
29	Correct	5 ms	5332 KB	Output is correct
30	Correct	4 ms	5416 KB	Output is correct
31	Correct	4 ms	5332 KB	Output is correct
32	Correct	4 ms	5332 KB	Output is correct
33	Correct	5 ms	5332 KB	Output is correct
34	Correct	5 ms	5292 KB	Output is correct
35	Correct	4 ms	5332 KB	Output is correct
36	Correct	4 ms	5204 KB	Output is correct
37	Correct	4 ms	5204 KB	Output is correct
38	Correct	3 ms	5332 KB	Output is correct
39	Correct	109 ms	34944 KB	Output is correct
40	Correct	112 ms	35144 KB	Output is correct
41	Correct	159 ms	34696 KB	Output is correct
42	Correct	106 ms	34296 KB	Output is correct
43	Correct	136 ms	47124 KB	Output is correct
44	Correct	135 ms	37772 KB	Output is correct
45	Correct	161 ms	30672 KB	Output is correct
46	Correct	58 ms	34528 KB	Output is correct
47	Correct	200 ms	53148 KB	Output is correct
48	Correct	328 ms	76628 KB	Output is correct
49	Correct	279 ms	76072 KB	Output is correct
50	Correct	182 ms	53148 KB	Output is correct
51	Correct	198 ms	53220 KB	Output is correct
52	Correct	265 ms	53180 KB	Output is correct
53	Correct	256 ms	57956 KB	Output is correct
54	Correct	335 ms	89824 KB	Output is correct
55	Correct	20 ms	8908 KB	Output is correct
56	Correct	10 ms	7636 KB	Output is correct
57	Correct	69 ms	32388 KB	Output is correct
58	Correct	49 ms	25572 KB	Output is correct
59	Correct	83 ms	40784 KB	Output is correct
60	Correct	263 ms	76296 KB	Output is correct
61	Correct	223 ms	56540 KB	Output is correct
62	Correct	180 ms	53116 KB	Output is correct
63	Correct	255 ms	53304 KB	Output is correct
64	Correct	402 ms	108036 KB	Output is correct
65	Correct	441 ms	105724 KB	Output is correct
66	Correct	296 ms	75132 KB	Output is correct
67	Correct	190 ms	47248 KB	Output is correct
68	Correct	367 ms	69324 KB	Output is correct
69	Correct	358 ms	74524 KB	Output is correct
70	Correct	318 ms	66644 KB	Output is correct

답안 #753824

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