oj.uz

답안 #927945

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
927945 2024-02-15T14:28:00 Z TAhmed33 경주 (Race) (IOI11_race) C++
100 / 100
 751 ms 45336 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
const int MAX = 2e5 + 24;
int sze[MAX];
bitset <MAX> vis;
int k;
vector <pair <int, int>> adj[MAX];

void calc (int pos, int par) {
	sze[pos] = 1;
	for (auto j : adj[pos]) {
		if (j.first == par || vis[j.first]) continue;
		calc(j.first, pos);
		sze[pos] += sze[j.first];		
	}
}

int find (int pos, int par, int kk) {
	for (auto j : adj[pos]) {
		if (j.first == par) continue;
		if (vis[j.first]) continue;
		if (sze[j.first] > (kk >> 1)) return find(j.first, pos, kk);
	}
	return pos;
}

int mn = 1e10;
map <int, int> cnt;

void ll2 (int pos, int par, int dep, int dist) {
	if (dist > k) return;
	if (cnt.count(k - dist)) mn = min(cnt[k - dist] + dep, mn);
	for (auto j : adj[pos]) {
		if (j.first != par && !vis[j.first]) {
			ll2(j.first, pos, dep + 1, dist + j.second);
		}
	}	
}

void ll (int pos, int par, int dep, int dist) {
	if (dist > k) return;
	if (cnt.count(dist)) cnt[dist] = min(cnt[dist], dep);
	else cnt[dist] = dep;
	for (auto j : adj[pos]) {
		if (j.first != par && !vis[j.first]) {
			ll(j.first, pos, dep + 1, dist + j.second);
		}
	}
}

void decomp (int pos) {
	calc(pos, -1);
	int c = find(pos, -1, sze[pos]);
	vis[c] = 1;
	cnt[0] = 0;
	for (auto j : adj[c]) {
		if (vis[j.first]) continue;
		ll2(j.first, c, 1, j.second);	
		ll(j.first, c, 1, j.second);
	}
	cnt.clear();
	for (auto i : adj[c]) {
		if (!vis[i.first]) {
			decomp(i.first);
		}
	}
}

int32_t best_path (int32_t n, int32_t K, int32_t h[][2], int32_t l[]) {
	k = K;
	for (int i = 0; i + 1 < n; i++) {
		adj[h[i][0] + 1].push_back({h[i][1] + 1, l[i]});
		adj[h[i][1] + 1].push_back({h[i][0] + 1, l[i]});
	}
	for (int i = 1; i <= n; i++) {
		vis[i] = 0;
	}
	decomp(1);
	return (mn >= 1e10 ? -1 : mn);
}

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 8796 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 1 ms 8796 KB Output is correct
4 Correct 1 ms 8796 KB Output is correct
5 Correct 2 ms 9048 KB Output is correct
6 Correct 2 ms 8796 KB Output is correct
7 Correct 2 ms 8796 KB Output is correct
8 Correct 3 ms 8796 KB Output is correct
9 Correct 2 ms 8792 KB Output is correct
10 Correct 2 ms 8796 KB Output is correct
11 Correct 2 ms 8796 KB Output is correct
12 Correct 2 ms 8796 KB Output is correct
13 Correct 2 ms 8796 KB Output is correct
14 Correct 2 ms 8796 KB Output is correct
15 Correct 3 ms 8796 KB Output is correct
16 Correct 2 ms 8792 KB Output is correct
17 Correct 2 ms 8792 KB Output is correct
18 Correct 2 ms 8796 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 8796 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 1 ms 8796 KB Output is correct
4 Correct 1 ms 8796 KB Output is correct
5 Correct 2 ms 9048 KB Output is correct
6 Correct 2 ms 8796 KB Output is correct
7 Correct 2 ms 8796 KB Output is correct
8 Correct 3 ms 8796 KB Output is correct
9 Correct 2 ms 8792 KB Output is correct
10 Correct 2 ms 8796 KB Output is correct
11 Correct 2 ms 8796 KB Output is correct
12 Correct 2 ms 8796 KB Output is correct
13 Correct 2 ms 8796 KB Output is correct
14 Correct 2 ms 8796 KB Output is correct
15 Correct 3 ms 8796 KB Output is correct
16 Correct 2 ms 8792 KB Output is correct
17 Correct 2 ms 8792 KB Output is correct
18 Correct 2 ms 8796 KB Output is correct
19 Correct 2 ms 8792 KB Output is correct
20 Correct 2 ms 8796 KB Output is correct
21 Correct 2 ms 8796 KB Output is correct
22 Correct 3 ms 8792 KB Output is correct
23 Correct 3 ms 8796 KB Output is correct
24 Correct 2 ms 8792 KB Output is correct
25 Correct 3 ms 8796 KB Output is correct
26 Correct 3 ms 8796 KB Output is correct
27 Correct 2 ms 8796 KB Output is correct
28 Correct 2 ms 9048 KB Output is correct
29 Correct 3 ms 8796 KB Output is correct
30 Correct 3 ms 8796 KB Output is correct
31 Correct 3 ms 8796 KB Output is correct
32 Correct 3 ms 8796 KB Output is correct
33 Correct 3 ms 8796 KB Output is correct
34 Correct 2 ms 8796 KB Output is correct
35 Correct 2 ms 8796 KB Output is correct
36 Correct 2 ms 8792 KB Output is correct
37 Correct 2 ms 8796 KB Output is correct
38 Correct 3 ms 8796 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 8796 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 1 ms 8796 KB Output is correct
4 Correct 1 ms 8796 KB Output is correct
5 Correct 2 ms 9048 KB Output is correct
6 Correct 2 ms 8796 KB Output is correct
7 Correct 2 ms 8796 KB Output is correct
8 Correct 3 ms 8796 KB Output is correct
9 Correct 2 ms 8792 KB Output is correct
10 Correct 2 ms 8796 KB Output is correct
11 Correct 2 ms 8796 KB Output is correct
12 Correct 2 ms 8796 KB Output is correct
13 Correct 2 ms 8796 KB Output is correct
14 Correct 2 ms 8796 KB Output is correct
15 Correct 3 ms 8796 KB Output is correct
16 Correct 2 ms 8792 KB Output is correct
17 Correct 2 ms 8792 KB Output is correct
18 Correct 2 ms 8796 KB Output is correct
19 Correct 158 ms 17176 KB Output is correct
20 Correct 145 ms 16884 KB Output is correct
21 Correct 169 ms 16892 KB Output is correct
22 Correct 157 ms 16928 KB Output is correct
23 Correct 58 ms 17236 KB Output is correct
24 Correct 55 ms 16624 KB Output is correct
25 Correct 108 ms 19804 KB Output is correct
26 Correct 87 ms 22760 KB Output is correct
27 Correct 169 ms 23404 KB Output is correct
28 Correct 185 ms 34388 KB Output is correct
29 Correct 197 ms 33360 KB Output is correct
30 Correct 135 ms 23368 KB Output is correct
31 Correct 163 ms 23640 KB Output is correct
32 Correct 161 ms 23444 KB Output is correct
33 Correct 177 ms 22096 KB Output is correct
34 Correct 126 ms 22352 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 8796 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 1 ms 8796 KB Output is correct
4 Correct 1 ms 8796 KB Output is correct
5 Correct 2 ms 9048 KB Output is correct
6 Correct 2 ms 8796 KB Output is correct
7 Correct 2 ms 8796 KB Output is correct
8 Correct 3 ms 8796 KB Output is correct
9 Correct 2 ms 8792 KB Output is correct
10 Correct 2 ms 8796 KB Output is correct
11 Correct 2 ms 8796 KB Output is correct
12 Correct 2 ms 8796 KB Output is correct
13 Correct 2 ms 8796 KB Output is correct
14 Correct 2 ms 8796 KB Output is correct
15 Correct 3 ms 8796 KB Output is correct
16 Correct 2 ms 8792 KB Output is correct
17 Correct 2 ms 8792 KB Output is correct
18 Correct 2 ms 8796 KB Output is correct
19 Correct 2 ms 8792 KB Output is correct
20 Correct 2 ms 8796 KB Output is correct
21 Correct 2 ms 8796 KB Output is correct
22 Correct 3 ms 8792 KB Output is correct
23 Correct 3 ms 8796 KB Output is correct
24 Correct 2 ms 8792 KB Output is correct
25 Correct 3 ms 8796 KB Output is correct
26 Correct 3 ms 8796 KB Output is correct
27 Correct 2 ms 8796 KB Output is correct
28 Correct 2 ms 9048 KB Output is correct
29 Correct 3 ms 8796 KB Output is correct
30 Correct 3 ms 8796 KB Output is correct
31 Correct 3 ms 8796 KB Output is correct
32 Correct 3 ms 8796 KB Output is correct
33 Correct 3 ms 8796 KB Output is correct
34 Correct 2 ms 8796 KB Output is correct
35 Correct 2 ms 8796 KB Output is correct
36 Correct 2 ms 8792 KB Output is correct
37 Correct 2 ms 8796 KB Output is correct
38 Correct 3 ms 8796 KB Output is correct
39 Correct 158 ms 17176 KB Output is correct
40 Correct 145 ms 16884 KB Output is correct
41 Correct 169 ms 16892 KB Output is correct
42 Correct 157 ms 16928 KB Output is correct
43 Correct 58 ms 17236 KB Output is correct
44 Correct 55 ms 16624 KB Output is correct
45 Correct 108 ms 19804 KB Output is correct
46 Correct 87 ms 22760 KB Output is correct
47 Correct 169 ms 23404 KB Output is correct
48 Correct 185 ms 34388 KB Output is correct
49 Correct 197 ms 33360 KB Output is correct
50 Correct 135 ms 23368 KB Output is correct
51 Correct 163 ms 23640 KB Output is correct
52 Correct 161 ms 23444 KB Output is correct
53 Correct 177 ms 22096 KB Output is correct
54 Correct 126 ms 22352 KB Output is correct
55 Correct 15 ms 9564 KB Output is correct
56 Correct 12 ms 9376 KB Output is correct
57 Correct 111 ms 17236 KB Output is correct
58 Correct 43 ms 16512 KB Output is correct
59 Correct 229 ms 27216 KB Output is correct
60 Correct 591 ms 45336 KB Output is correct
61 Correct 261 ms 23376 KB Output is correct
62 Correct 216 ms 23520 KB Output is correct
63 Correct 251 ms 23636 KB Output is correct
64 Correct 751 ms 28648 KB Output is correct
65 Correct 138 ms 22848 KB Output is correct
66 Correct 414 ms 31672 KB Output is correct
67 Correct 94 ms 21932 KB Output is correct
68 Correct 295 ms 27472 KB Output is correct
69 Correct 285 ms 27220 KB Output is correct
70 Correct 253 ms 26704 KB Output is correct