답안 #480937

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
480937	2021-10-18T20:52:15 Z	peti1234	경주 (Race) (IOI11_race)	C++17	100 / 100	522 ms	101504 KB

race

#include <bits/stdc++.h>

using namespace std;
const int c=200005;
int szint[c], ki[c];
long long dist[c], cel, ans=c;
map<long long, long long> m[c];
vector<pair<int, int> > sz[c];
bool v[c];

void unio(int a, int b) {
    int aa=ki[a], bb=ki[b], sa=m[aa].size(), sb=m[bb].size();
    long long ert=cel+2*dist[a];
    if (sa>=sb) {
        for (auto p:m[bb]) {
            long long fi=p.first, se=p.second, inv=ert-fi;
            if (m[aa].find(inv)!=m[aa].end()) {
                ans=min(ans, se+m[aa][inv]-2*szint[a]);
            }
        }
        for (auto p:m[bb]) {
            long long fi=p.first, se=p.second;
            if (m[aa].find(fi)!=m[aa].end()) {
                m[aa][fi]=min(m[aa][fi], se);
            } else {
                m[aa][fi]=se;
            }
        }
    } else {
        ki[a]=bb;
        for (auto p:m[aa]) {
            long long fi=p.first, se=p.second, inv=ert-fi;
            if (m[bb].find(inv)!=m[bb].end()) {
                ans=min(ans, se+m[bb][inv]-2*szint[a]);
            }
        }
        for (auto p:m[aa]) {
            long long fi=p.first, se=p.second;
            if (m[bb].find(fi)!=m[bb].end()) {
                m[bb][fi]=min(m[bb][fi], se);
            } else {
                m[bb][fi]=se;
            }
        }
    }
}

void dfs(int a) {
    v[a]=true;
    ki[a]=a;
    m[a][dist[a]]=szint[a];
    for (auto p:sz[a]) {
        int x=p.first, y=p.second;
        if (!v[x]) {
            szint[x]=szint[a]+1;
            dist[x]=dist[a]+y;
            dfs(x);
            unio(a, x);
        }
    }
}

int best_path(int n, int K, int H[][2], int L[]) {
    cel=K;
    for (int i=0; i<n-1; i++) {
        int a=H[i][0], b=H[i][1], c=L[i];
        a++, b++;
        sz[a].push_back({b, c});
        sz[b].push_back({a, c});
    }
    szint[1]=1;
    dfs(1);
    return (ans==c ? -1 : ans);
}

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	10 ms	14412 KB	Output is correct
2	Correct	10 ms	14412 KB	Output is correct
3	Correct	11 ms	14408 KB	Output is correct
4	Correct	11 ms	14412 KB	Output is correct
5	Correct	12 ms	14364 KB	Output is correct
6	Correct	12 ms	14412 KB	Output is correct
7	Correct	12 ms	14412 KB	Output is correct
8	Correct	12 ms	14412 KB	Output is correct
9	Correct	11 ms	14412 KB	Output is correct
10	Correct	10 ms	14412 KB	Output is correct
11	Correct	11 ms	14344 KB	Output is correct
12	Correct	10 ms	14444 KB	Output is correct
13	Correct	12 ms	14412 KB	Output is correct
14	Correct	10 ms	14340 KB	Output is correct
15	Correct	11 ms	14412 KB	Output is correct
16	Correct	11 ms	14412 KB	Output is correct
17	Correct	10 ms	14384 KB	Output is correct
18	Correct	10 ms	14412 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	10 ms	14412 KB	Output is correct
2	Correct	10 ms	14412 KB	Output is correct
3	Correct	11 ms	14408 KB	Output is correct
4	Correct	11 ms	14412 KB	Output is correct
5	Correct	12 ms	14364 KB	Output is correct
6	Correct	12 ms	14412 KB	Output is correct
7	Correct	12 ms	14412 KB	Output is correct
8	Correct	12 ms	14412 KB	Output is correct
9	Correct	11 ms	14412 KB	Output is correct
10	Correct	10 ms	14412 KB	Output is correct
11	Correct	11 ms	14344 KB	Output is correct
12	Correct	10 ms	14444 KB	Output is correct
13	Correct	12 ms	14412 KB	Output is correct
14	Correct	10 ms	14340 KB	Output is correct
15	Correct	11 ms	14412 KB	Output is correct
16	Correct	11 ms	14412 KB	Output is correct
17	Correct	10 ms	14384 KB	Output is correct
18	Correct	10 ms	14412 KB	Output is correct
19	Correct	11 ms	14412 KB	Output is correct
20	Correct	12 ms	14512 KB	Output is correct
21	Correct	12 ms	14616 KB	Output is correct
22	Correct	12 ms	14668 KB	Output is correct
23	Correct	13 ms	14608 KB	Output is correct
24	Correct	13 ms	14660 KB	Output is correct
25	Correct	12 ms	14668 KB	Output is correct
26	Correct	11 ms	14668 KB	Output is correct
27	Correct	11 ms	14580 KB	Output is correct
28	Correct	13 ms	14720 KB	Output is correct
29	Correct	12 ms	14668 KB	Output is correct
30	Correct	11 ms	14664 KB	Output is correct
31	Correct	12 ms	14668 KB	Output is correct
32	Correct	12 ms	14668 KB	Output is correct
33	Correct	12 ms	14664 KB	Output is correct
34	Correct	13 ms	14556 KB	Output is correct
35	Correct	12 ms	14640 KB	Output is correct
36	Correct	12 ms	14540 KB	Output is correct
37	Correct	11 ms	14540 KB	Output is correct
38	Correct	11 ms	14612 KB	Output is correct

Subtask #3
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	10 ms	14412 KB	Output is correct
2	Correct	10 ms	14412 KB	Output is correct
3	Correct	11 ms	14408 KB	Output is correct
4	Correct	11 ms	14412 KB	Output is correct
5	Correct	12 ms	14364 KB	Output is correct
6	Correct	12 ms	14412 KB	Output is correct
7	Correct	12 ms	14412 KB	Output is correct
8	Correct	12 ms	14412 KB	Output is correct
9	Correct	11 ms	14412 KB	Output is correct
10	Correct	10 ms	14412 KB	Output is correct
11	Correct	11 ms	14344 KB	Output is correct
12	Correct	10 ms	14444 KB	Output is correct
13	Correct	12 ms	14412 KB	Output is correct
14	Correct	10 ms	14340 KB	Output is correct
15	Correct	11 ms	14412 KB	Output is correct
16	Correct	11 ms	14412 KB	Output is correct
17	Correct	10 ms	14384 KB	Output is correct
18	Correct	10 ms	14412 KB	Output is correct
19	Correct	144 ms	36624 KB	Output is correct
20	Correct	149 ms	36432 KB	Output is correct
21	Correct	146 ms	36132 KB	Output is correct
22	Correct	151 ms	35728 KB	Output is correct
23	Correct	194 ms	48660 KB	Output is correct
24	Correct	149 ms	39108 KB	Output is correct
25	Correct	114 ms	32196 KB	Output is correct
26	Correct	69 ms	35980 KB	Output is correct
27	Correct	223 ms	46660 KB	Output is correct
28	Correct	312 ms	70088 KB	Output is correct
29	Correct	310 ms	69708 KB	Output is correct
30	Correct	213 ms	46660 KB	Output is correct
31	Correct	212 ms	46560 KB	Output is correct
32	Correct	280 ms	46684 KB	Output is correct
33	Correct	280 ms	51364 KB	Output is correct
34	Correct	374 ms	83300 KB	Output is correct

Subtask #4
57.0 / 57.0

#	결과	실행 시간	메모리	Grader output
1	Correct	10 ms	14412 KB	Output is correct
2	Correct	10 ms	14412 KB	Output is correct
3	Correct	11 ms	14408 KB	Output is correct
4	Correct	11 ms	14412 KB	Output is correct
5	Correct	12 ms	14364 KB	Output is correct
6	Correct	12 ms	14412 KB	Output is correct
7	Correct	12 ms	14412 KB	Output is correct
8	Correct	12 ms	14412 KB	Output is correct
9	Correct	11 ms	14412 KB	Output is correct
10	Correct	10 ms	14412 KB	Output is correct
11	Correct	11 ms	14344 KB	Output is correct
12	Correct	10 ms	14444 KB	Output is correct
13	Correct	12 ms	14412 KB	Output is correct
14	Correct	10 ms	14340 KB	Output is correct
15	Correct	11 ms	14412 KB	Output is correct
16	Correct	11 ms	14412 KB	Output is correct
17	Correct	10 ms	14384 KB	Output is correct
18	Correct	10 ms	14412 KB	Output is correct
19	Correct	11 ms	14412 KB	Output is correct
20	Correct	12 ms	14512 KB	Output is correct
21	Correct	12 ms	14616 KB	Output is correct
22	Correct	12 ms	14668 KB	Output is correct
23	Correct	13 ms	14608 KB	Output is correct
24	Correct	13 ms	14660 KB	Output is correct
25	Correct	12 ms	14668 KB	Output is correct
26	Correct	11 ms	14668 KB	Output is correct
27	Correct	11 ms	14580 KB	Output is correct
28	Correct	13 ms	14720 KB	Output is correct
29	Correct	12 ms	14668 KB	Output is correct
30	Correct	11 ms	14664 KB	Output is correct
31	Correct	12 ms	14668 KB	Output is correct
32	Correct	12 ms	14668 KB	Output is correct
33	Correct	12 ms	14664 KB	Output is correct
34	Correct	13 ms	14556 KB	Output is correct
35	Correct	12 ms	14640 KB	Output is correct
36	Correct	12 ms	14540 KB	Output is correct
37	Correct	11 ms	14540 KB	Output is correct
38	Correct	11 ms	14612 KB	Output is correct
39	Correct	144 ms	36624 KB	Output is correct
40	Correct	149 ms	36432 KB	Output is correct
41	Correct	146 ms	36132 KB	Output is correct
42	Correct	151 ms	35728 KB	Output is correct
43	Correct	194 ms	48660 KB	Output is correct
44	Correct	149 ms	39108 KB	Output is correct
45	Correct	114 ms	32196 KB	Output is correct
46	Correct	69 ms	35980 KB	Output is correct
47	Correct	223 ms	46660 KB	Output is correct
48	Correct	312 ms	70088 KB	Output is correct
49	Correct	310 ms	69708 KB	Output is correct
50	Correct	213 ms	46660 KB	Output is correct
51	Correct	212 ms	46560 KB	Output is correct
52	Correct	280 ms	46684 KB	Output is correct
53	Correct	280 ms	51364 KB	Output is correct
54	Correct	374 ms	83300 KB	Output is correct
55	Correct	26 ms	17568 KB	Output is correct
56	Correct	20 ms	16248 KB	Output is correct
57	Correct	89 ms	33864 KB	Output is correct
58	Correct	64 ms	27320 KB	Output is correct
59	Correct	102 ms	42236 KB	Output is correct
60	Correct	304 ms	69656 KB	Output is correct
61	Correct	270 ms	50040 KB	Output is correct
62	Correct	215 ms	46632 KB	Output is correct
63	Correct	289 ms	46888 KB	Output is correct
64	Correct	522 ms	101504 KB	Output is correct
65	Correct	510 ms	99268 KB	Output is correct
66	Correct	329 ms	68616 KB	Output is correct
67	Correct	211 ms	40752 KB	Output is correct
68	Correct	396 ms	62916 KB	Output is correct
69	Correct	412 ms	68108 KB	Output is correct
70	Correct	378 ms	60848 KB	Output is correct

답안 #480937

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