답안 #904823

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
904823	2024-01-12T09:12:58 Z	Amirreza_Fakhri	경주 (Race) (IOI11_race)	C++17	100 / 100	358 ms	39144 KB

race

// In the name of the God 
#include <bits/stdc++.h>
#define ll long long
// #define int long long
#define pb push_back
#define F first
#define S second
#define mp make_pair
#define pii pair <int, int>
#define smin(x, y) (x) = min((x), (y))
#define smax(x, y) (x) = max((x), (y))
#define all(x) (x).begin(), (x).end()
using namespace std;

const int inf = 1e9+7;
const int mod = 998244353;
const int maxn = 2e5+5, maxk = 1e6+5;

int n, k, ans = inf, sz[maxn], mn[maxk];
bool mark[maxn];
vector <pii> adj[maxn], vec1;
vector <int> vec2;

void dfs1(int v, int p) {
    sz[v] = 1;
    for (pii e : adj[v]) {
        int u = e.F;
        if (u != p and !mark[u]) {
            dfs1(u, v); sz[v] += sz[u];
        }
    }
}

int dfs2(int v, int s, int p) {
    for (pii e : adj[v]) {
        int u = e.F;
        if (u != p and !mark[u] and sz[u] > s/2) return dfs2(u, s, v);
    }
    return v;
}

void dfs3(int v, int c, int h, int p) {
    if (c > k) return;
    vec2.pb(c); vec1.pb(mp(c, h));
    smin(ans, mn[k-c]+h);
    for (pii e : adj[v]) {
        int u = e.F;
        if (u != p and !mark[u]) dfs3(u, c+e.S, h+1, v);
    }
}

void cd(int v) {
    dfs1(v, v);
    v = dfs2(v, sz[v], v);
    mn[0] = 0; vec2.pb(0);
    for (pii e : adj[v]) {
        int u = e.F;
        if (!mark[u]) {
            dfs3(u, e.S, 1, v);
            for (pii x : vec1) smin(mn[x.F], x.S);
            vec1.clear();
        }
    }
    for (int x : vec2) mn[x] = inf;
    vec2.clear();
    mark[v] = 1;
    for (pii e : adj[v]) {
        int u = e.F;
        if (!mark[u]) cd(u);
    }
}

int best_path(int N, int K, int H[][2], int L[]) {
    n = N, k = K;
    for (int i = 0; i < n-1; i++) {
        adj[H[i][0]].pb(mp(H[i][1], L[i]));
        adj[H[i][1]].pb(mp(H[i][0], L[i]));
    }
    fill(mn, mn+maxk, inf);
    cd(0);
    return ans == inf ? -1 : ans;
}

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	12888 KB	Output is correct
2	Correct	4 ms	12888 KB	Output is correct
3	Correct	4 ms	12892 KB	Output is correct
4	Correct	5 ms	12892 KB	Output is correct
5	Correct	3 ms	12892 KB	Output is correct
6	Correct	4 ms	12892 KB	Output is correct
7	Correct	4 ms	12888 KB	Output is correct
8	Correct	3 ms	12892 KB	Output is correct
9	Correct	3 ms	12892 KB	Output is correct
10	Correct	3 ms	12892 KB	Output is correct
11	Correct	3 ms	12892 KB	Output is correct
12	Correct	4 ms	12904 KB	Output is correct
13	Correct	3 ms	12892 KB	Output is correct
14	Correct	3 ms	12892 KB	Output is correct
15	Correct	3 ms	12724 KB	Output is correct
16	Correct	4 ms	12892 KB	Output is correct
17	Correct	3 ms	12892 KB	Output is correct
18	Correct	3 ms	12888 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	12888 KB	Output is correct
2	Correct	4 ms	12888 KB	Output is correct
3	Correct	4 ms	12892 KB	Output is correct
4	Correct	5 ms	12892 KB	Output is correct
5	Correct	3 ms	12892 KB	Output is correct
6	Correct	4 ms	12892 KB	Output is correct
7	Correct	4 ms	12888 KB	Output is correct
8	Correct	3 ms	12892 KB	Output is correct
9	Correct	3 ms	12892 KB	Output is correct
10	Correct	3 ms	12892 KB	Output is correct
11	Correct	3 ms	12892 KB	Output is correct
12	Correct	4 ms	12904 KB	Output is correct
13	Correct	3 ms	12892 KB	Output is correct
14	Correct	3 ms	12892 KB	Output is correct
15	Correct	3 ms	12724 KB	Output is correct
16	Correct	4 ms	12892 KB	Output is correct
17	Correct	3 ms	12892 KB	Output is correct
18	Correct	3 ms	12888 KB	Output is correct
19	Correct	4 ms	12892 KB	Output is correct
20	Correct	3 ms	12888 KB	Output is correct
21	Correct	3 ms	12892 KB	Output is correct
22	Correct	4 ms	12892 KB	Output is correct
23	Correct	4 ms	12892 KB	Output is correct
24	Correct	4 ms	12892 KB	Output is correct
25	Correct	5 ms	12888 KB	Output is correct
26	Correct	4 ms	12892 KB	Output is correct
27	Correct	4 ms	12892 KB	Output is correct
28	Correct	4 ms	12892 KB	Output is correct
29	Correct	4 ms	12892 KB	Output is correct
30	Correct	4 ms	12892 KB	Output is correct
31	Correct	4 ms	13300 KB	Output is correct
32	Correct	4 ms	12892 KB	Output is correct
33	Correct	4 ms	12892 KB	Output is correct
34	Correct	4 ms	12892 KB	Output is correct
35	Correct	4 ms	12892 KB	Output is correct
36	Correct	4 ms	12888 KB	Output is correct
37	Correct	4 ms	12888 KB	Output is correct
38	Correct	4 ms	12892 KB	Output is correct

Subtask #3
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	12888 KB	Output is correct
2	Correct	4 ms	12888 KB	Output is correct
3	Correct	4 ms	12892 KB	Output is correct
4	Correct	5 ms	12892 KB	Output is correct
5	Correct	3 ms	12892 KB	Output is correct
6	Correct	4 ms	12892 KB	Output is correct
7	Correct	4 ms	12888 KB	Output is correct
8	Correct	3 ms	12892 KB	Output is correct
9	Correct	3 ms	12892 KB	Output is correct
10	Correct	3 ms	12892 KB	Output is correct
11	Correct	3 ms	12892 KB	Output is correct
12	Correct	4 ms	12904 KB	Output is correct
13	Correct	3 ms	12892 KB	Output is correct
14	Correct	3 ms	12892 KB	Output is correct
15	Correct	3 ms	12724 KB	Output is correct
16	Correct	4 ms	12892 KB	Output is correct
17	Correct	3 ms	12892 KB	Output is correct
18	Correct	3 ms	12888 KB	Output is correct
19	Correct	81 ms	19284 KB	Output is correct
20	Correct	88 ms	19272 KB	Output is correct
21	Correct	80 ms	19672 KB	Output is correct
22	Correct	87 ms	20096 KB	Output is correct
23	Correct	48 ms	19280 KB	Output is correct
24	Correct	47 ms	19260 KB	Output is correct
25	Correct	83 ms	22612 KB	Output is correct
26	Correct	76 ms	27456 KB	Output is correct
27	Correct	161 ms	23404 KB	Output is correct
28	Correct	204 ms	37608 KB	Output is correct
29	Correct	264 ms	36584 KB	Output is correct
30	Correct	144 ms	23496 KB	Output is correct
31	Correct	130 ms	23376 KB	Output is correct
32	Correct	126 ms	23376 KB	Output is correct
33	Correct	139 ms	22124 KB	Output is correct
34	Correct	125 ms	22276 KB	Output is correct

Subtask #4
57.0 / 57.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	12888 KB	Output is correct
2	Correct	4 ms	12888 KB	Output is correct
3	Correct	4 ms	12892 KB	Output is correct
4	Correct	5 ms	12892 KB	Output is correct
5	Correct	3 ms	12892 KB	Output is correct
6	Correct	4 ms	12892 KB	Output is correct
7	Correct	4 ms	12888 KB	Output is correct
8	Correct	3 ms	12892 KB	Output is correct
9	Correct	3 ms	12892 KB	Output is correct
10	Correct	3 ms	12892 KB	Output is correct
11	Correct	3 ms	12892 KB	Output is correct
12	Correct	4 ms	12904 KB	Output is correct
13	Correct	3 ms	12892 KB	Output is correct
14	Correct	3 ms	12892 KB	Output is correct
15	Correct	3 ms	12724 KB	Output is correct
16	Correct	4 ms	12892 KB	Output is correct
17	Correct	3 ms	12892 KB	Output is correct
18	Correct	3 ms	12888 KB	Output is correct
19	Correct	4 ms	12892 KB	Output is correct
20	Correct	3 ms	12888 KB	Output is correct
21	Correct	3 ms	12892 KB	Output is correct
22	Correct	4 ms	12892 KB	Output is correct
23	Correct	4 ms	12892 KB	Output is correct
24	Correct	4 ms	12892 KB	Output is correct
25	Correct	5 ms	12888 KB	Output is correct
26	Correct	4 ms	12892 KB	Output is correct
27	Correct	4 ms	12892 KB	Output is correct
28	Correct	4 ms	12892 KB	Output is correct
29	Correct	4 ms	12892 KB	Output is correct
30	Correct	4 ms	12892 KB	Output is correct
31	Correct	4 ms	13300 KB	Output is correct
32	Correct	4 ms	12892 KB	Output is correct
33	Correct	4 ms	12892 KB	Output is correct
34	Correct	4 ms	12892 KB	Output is correct
35	Correct	4 ms	12892 KB	Output is correct
36	Correct	4 ms	12888 KB	Output is correct
37	Correct	4 ms	12888 KB	Output is correct
38	Correct	4 ms	12892 KB	Output is correct
39	Correct	81 ms	19284 KB	Output is correct
40	Correct	88 ms	19272 KB	Output is correct
41	Correct	80 ms	19672 KB	Output is correct
42	Correct	87 ms	20096 KB	Output is correct
43	Correct	48 ms	19280 KB	Output is correct
44	Correct	47 ms	19260 KB	Output is correct
45	Correct	83 ms	22612 KB	Output is correct
46	Correct	76 ms	27456 KB	Output is correct
47	Correct	161 ms	23404 KB	Output is correct
48	Correct	204 ms	37608 KB	Output is correct
49	Correct	264 ms	36584 KB	Output is correct
50	Correct	144 ms	23496 KB	Output is correct
51	Correct	130 ms	23376 KB	Output is correct
52	Correct	126 ms	23376 KB	Output is correct
53	Correct	139 ms	22124 KB	Output is correct
54	Correct	125 ms	22276 KB	Output is correct
55	Correct	9 ms	13400 KB	Output is correct
56	Correct	9 ms	13404 KB	Output is correct
57	Correct	58 ms	20424 KB	Output is correct
58	Correct	30 ms	20180 KB	Output is correct
59	Correct	71 ms	27340 KB	Output is correct
60	Correct	358 ms	39144 KB	Output is correct
61	Correct	130 ms	23636 KB	Output is correct
62	Correct	184 ms	24576 KB	Output is correct
63	Correct	210 ms	24484 KB	Output is correct
64	Correct	230 ms	24992 KB	Output is correct
65	Correct	157 ms	23184 KB	Output is correct
66	Correct	231 ms	34176 KB	Output is correct
67	Correct	81 ms	25284 KB	Output is correct
68	Correct	218 ms	24268 KB	Output is correct
69	Correct	208 ms	24344 KB	Output is correct
70	Correct	176 ms	23788 KB	Output is correct

답안 #904823

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