답안 #787799

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
787799	2023-07-19T12:49:52 Z	allin27x	경주 (Race) (IOI11_race)	C++17	100 / 100	540 ms	136840 KB

race

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

int n; int t;
signed ans = 1e7;
unordered_map<int,int> adj[(int)2e5];
int off1[(int)2e5];
int off2[(int)2e5];
unordered_map<int, int> pth[(int)2e5];

void dfs(int i, int p){
	for (auto const &pair1: adj[i]){
		int c = pair1.first; int w = pair1.second;
		if (c==p) continue;
		dfs(c,i);
		off1[c]+=w;
		off2[c]+=1;
		if (pth[i].size() < pth[c].size()){
			swap(pth[i], pth[c]);
			swap(off1[c], off1[i]);
			swap(off2[c], off2[i]);
		}
		for (auto const & pr: pth[c]){
			int s = pr.first; int l = pr.second;
			if (pth[i].count(t-s-off1[c]-off1[i])) ans = min(ans,(signed)(l+pth[i][t-s-off1[c]-off1[i]]+off2[i]+off2[c]));
		}

		for (auto const & pr: pth[c]){
			int s = pr.first; int l = pr.second;
			if (pth[i].count(s-off1[i]+off1[c]))pth[i][s-off1[i]+off1[c]] = min(pth[i][s-off1[i]+off1[c]], l+off2[c]-off2[i]);
			else pth[i][s-off1[i]+off1[c]] = l+off2[c]-off2[i];			
		}
	}
}

signed best_path(signed sz, signed k, signed h[][2], signed l[]){
	n = sz; t=k;
	for (int i=0; i<n-1; i++){
		int a = h[i][0]; int b = h[i][1];
		adj[a][b] = l[i]; adj[b][a] = l[i];
	}
	for (int i=0; i<n; i++) pth[i][0] = 0;
	for (int i=0; i<n; i++) off1[i] = 0;
	for (int i=0; i<n; i++) off2[i] = 0;		
	dfs(0,0);
	if (ans==(int)1e7) return -1;
	return ans;
}

// signed main(){
// 	signed n= 11, k=12;
// 	signed h[n-1][2];
// 	signed l[n-1];
// 	for (int i=0; i<n-1; i++) cin>>h[i][0]>>h[i][1];
// 	for (int i=0; i<n-1; i++) cin>>l[i];
// 	cout<<best_path(n, k, h, l);
// }

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	12 ms	22228 KB	Output is correct
2	Correct	13 ms	22260 KB	Output is correct
3	Correct	12 ms	22228 KB	Output is correct
4	Correct	13 ms	22196 KB	Output is correct
5	Correct	11 ms	22244 KB	Output is correct
6	Correct	11 ms	22244 KB	Output is correct
7	Correct	12 ms	22228 KB	Output is correct
8	Correct	13 ms	22248 KB	Output is correct
9	Correct	12 ms	22192 KB	Output is correct
10	Correct	14 ms	22296 KB	Output is correct
11	Correct	12 ms	22228 KB	Output is correct
12	Correct	13 ms	22200 KB	Output is correct
13	Correct	12 ms	22228 KB	Output is correct
14	Correct	11 ms	22228 KB	Output is correct
15	Correct	11 ms	22236 KB	Output is correct
16	Correct	13 ms	22228 KB	Output is correct
17	Correct	14 ms	22216 KB	Output is correct
18	Correct	13 ms	22296 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	12 ms	22228 KB	Output is correct
2	Correct	13 ms	22260 KB	Output is correct
3	Correct	12 ms	22228 KB	Output is correct
4	Correct	13 ms	22196 KB	Output is correct
5	Correct	11 ms	22244 KB	Output is correct
6	Correct	11 ms	22244 KB	Output is correct
7	Correct	12 ms	22228 KB	Output is correct
8	Correct	13 ms	22248 KB	Output is correct
9	Correct	12 ms	22192 KB	Output is correct
10	Correct	14 ms	22296 KB	Output is correct
11	Correct	12 ms	22228 KB	Output is correct
12	Correct	13 ms	22200 KB	Output is correct
13	Correct	12 ms	22228 KB	Output is correct
14	Correct	11 ms	22228 KB	Output is correct
15	Correct	11 ms	22236 KB	Output is correct
16	Correct	13 ms	22228 KB	Output is correct
17	Correct	14 ms	22216 KB	Output is correct
18	Correct	13 ms	22296 KB	Output is correct
19	Correct	11 ms	22188 KB	Output is correct
20	Correct	11 ms	22228 KB	Output is correct
21	Correct	12 ms	22684 KB	Output is correct
22	Correct	12 ms	22608 KB	Output is correct
23	Correct	12 ms	22704 KB	Output is correct
24	Correct	12 ms	22716 KB	Output is correct
25	Correct	12 ms	22612 KB	Output is correct
26	Correct	13 ms	22612 KB	Output is correct
27	Correct	12 ms	22612 KB	Output is correct
28	Correct	13 ms	22712 KB	Output is correct
29	Correct	13 ms	22720 KB	Output is correct
30	Correct	14 ms	22716 KB	Output is correct
31	Correct	14 ms	22732 KB	Output is correct
32	Correct	13 ms	22612 KB	Output is correct
33	Correct	15 ms	22604 KB	Output is correct
34	Correct	13 ms	22676 KB	Output is correct
35	Correct	13 ms	22628 KB	Output is correct
36	Correct	14 ms	22640 KB	Output is correct
37	Correct	15 ms	22612 KB	Output is correct
38	Correct	15 ms	22552 KB	Output is correct

Subtask #3
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	12 ms	22228 KB	Output is correct
2	Correct	13 ms	22260 KB	Output is correct
3	Correct	12 ms	22228 KB	Output is correct
4	Correct	13 ms	22196 KB	Output is correct
5	Correct	11 ms	22244 KB	Output is correct
6	Correct	11 ms	22244 KB	Output is correct
7	Correct	12 ms	22228 KB	Output is correct
8	Correct	13 ms	22248 KB	Output is correct
9	Correct	12 ms	22192 KB	Output is correct
10	Correct	14 ms	22296 KB	Output is correct
11	Correct	12 ms	22228 KB	Output is correct
12	Correct	13 ms	22200 KB	Output is correct
13	Correct	12 ms	22228 KB	Output is correct
14	Correct	11 ms	22228 KB	Output is correct
15	Correct	11 ms	22236 KB	Output is correct
16	Correct	13 ms	22228 KB	Output is correct
17	Correct	14 ms	22216 KB	Output is correct
18	Correct	13 ms	22296 KB	Output is correct
19	Correct	139 ms	62028 KB	Output is correct
20	Correct	139 ms	62048 KB	Output is correct
21	Correct	138 ms	62020 KB	Output is correct
22	Correct	214 ms	62464 KB	Output is correct
23	Correct	163 ms	69456 KB	Output is correct
24	Correct	137 ms	63500 KB	Output is correct
25	Correct	142 ms	65808 KB	Output is correct
26	Correct	92 ms	73420 KB	Output is correct
27	Correct	273 ms	95820 KB	Output is correct
28	Correct	333 ms	134060 KB	Output is correct
29	Correct	357 ms	131740 KB	Output is correct
30	Correct	267 ms	95820 KB	Output is correct
31	Correct	292 ms	95804 KB	Output is correct
32	Correct	458 ms	95800 KB	Output is correct
33	Correct	317 ms	99104 KB	Output is correct
34	Correct	465 ms	121508 KB	Output is correct

Subtask #4
57.0 / 57.0

#	결과	실행 시간	메모리	Grader output
1	Correct	12 ms	22228 KB	Output is correct
2	Correct	13 ms	22260 KB	Output is correct
3	Correct	12 ms	22228 KB	Output is correct
4	Correct	13 ms	22196 KB	Output is correct
5	Correct	11 ms	22244 KB	Output is correct
6	Correct	11 ms	22244 KB	Output is correct
7	Correct	12 ms	22228 KB	Output is correct
8	Correct	13 ms	22248 KB	Output is correct
9	Correct	12 ms	22192 KB	Output is correct
10	Correct	14 ms	22296 KB	Output is correct
11	Correct	12 ms	22228 KB	Output is correct
12	Correct	13 ms	22200 KB	Output is correct
13	Correct	12 ms	22228 KB	Output is correct
14	Correct	11 ms	22228 KB	Output is correct
15	Correct	11 ms	22236 KB	Output is correct
16	Correct	13 ms	22228 KB	Output is correct
17	Correct	14 ms	22216 KB	Output is correct
18	Correct	13 ms	22296 KB	Output is correct
19	Correct	11 ms	22188 KB	Output is correct
20	Correct	11 ms	22228 KB	Output is correct
21	Correct	12 ms	22684 KB	Output is correct
22	Correct	12 ms	22608 KB	Output is correct
23	Correct	12 ms	22704 KB	Output is correct
24	Correct	12 ms	22716 KB	Output is correct
25	Correct	12 ms	22612 KB	Output is correct
26	Correct	13 ms	22612 KB	Output is correct
27	Correct	12 ms	22612 KB	Output is correct
28	Correct	13 ms	22712 KB	Output is correct
29	Correct	13 ms	22720 KB	Output is correct
30	Correct	14 ms	22716 KB	Output is correct
31	Correct	14 ms	22732 KB	Output is correct
32	Correct	13 ms	22612 KB	Output is correct
33	Correct	15 ms	22604 KB	Output is correct
34	Correct	13 ms	22676 KB	Output is correct
35	Correct	13 ms	22628 KB	Output is correct
36	Correct	14 ms	22640 KB	Output is correct
37	Correct	15 ms	22612 KB	Output is correct
38	Correct	15 ms	22552 KB	Output is correct
39	Correct	139 ms	62028 KB	Output is correct
40	Correct	139 ms	62048 KB	Output is correct
41	Correct	138 ms	62020 KB	Output is correct
42	Correct	214 ms	62464 KB	Output is correct
43	Correct	163 ms	69456 KB	Output is correct
44	Correct	137 ms	63500 KB	Output is correct
45	Correct	142 ms	65808 KB	Output is correct
46	Correct	92 ms	73420 KB	Output is correct
47	Correct	273 ms	95820 KB	Output is correct
48	Correct	333 ms	134060 KB	Output is correct
49	Correct	357 ms	131740 KB	Output is correct
50	Correct	267 ms	95820 KB	Output is correct
51	Correct	292 ms	95804 KB	Output is correct
52	Correct	458 ms	95800 KB	Output is correct
53	Correct	317 ms	99104 KB	Output is correct
54	Correct	465 ms	121508 KB	Output is correct
55	Correct	25 ms	27220 KB	Output is correct
56	Correct	24 ms	25952 KB	Output is correct
57	Correct	86 ms	59624 KB	Output is correct
58	Correct	74 ms	57532 KB	Output is correct
59	Correct	89 ms	78068 KB	Output is correct
60	Correct	328 ms	132596 KB	Output is correct
61	Correct	286 ms	98092 KB	Output is correct
62	Correct	332 ms	95692 KB	Output is correct
63	Correct	451 ms	95712 KB	Output is correct
64	Correct	540 ms	131340 KB	Output is correct
65	Correct	525 ms	136840 KB	Output is correct
66	Correct	377 ms	128048 KB	Output is correct
67	Correct	266 ms	93212 KB	Output is correct
68	Correct	507 ms	107792 KB	Output is correct
69	Correct	487 ms	107880 KB	Output is correct
70	Correct	465 ms	103464 KB	Output is correct

답안 #787799

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