oj.uz

Submission #750579

# Submission time Handle Problem Language Result Execution time Memory
750579 2023-05-29T18:27:42 Z jmyszka2007 Factories (JOI14_factories) C++17
100 / 100
 3689 ms 375648 KB 
#include "factories.h"
#include <bits/stdc++.h>
using namespace std;
#define st first
#define nd second
typedef long long ll;
constexpr int LIM = 5e5;
vector<pair<int, int> >g[LIM + 10];
vector<pair<int, ll> >cen[LIM + 10];
ll cnt[LIM + 10];
int siz[LIM + 10];
bool vis[LIM + 10];
void cntsiz(int v, int o) {
	siz[v] = 1;
	for(auto x : g[v]) {
		if(x.st != o) {
			cntsiz(x.st, v);
			siz[v] += siz[x.st];
		}
	}
}
void cntdist(int v, int o, int kt, ll d) {
	cen[v].push_back({kt, d});
	for(auto x : g[v]) {
		if(x.st != o && !vis[x.st]) {
			cntdist(x.st, v, kt, d + x.nd);
		}
	}
}
int find(int a) {
	for(auto x : g[a]) {
		if(!vis[x.st] && siz[x.st] > siz[a] / 2) {
			int tmp = siz[x.st];
			siz[x.st] = siz[a];
			siz[a] -= tmp;
			return find(x.st);
		}
	}
	return a;
}
void dfs(int v) {
	int c = find(v);
	vis[c] = 1;
	cntdist(c, c, c, 0);
	for(auto x : g[c]) {
		if(!vis[x.st]) {
			dfs(x.st);
		}
	}
}
void Init(int n, int a[], int b[], int c[]) {
	for(int i = 0; i < n - 1; i++) {
		g[a[i]].push_back({b[i], c[i]});
		g[b[i]].push_back({a[i], c[i]});
	}
	for(int i = 0; i < n; i++) {
		cnt[i] = 1e18;
	}
	cntsiz(1, 1);
	dfs(1);
}
ll Query(int n, int a[], int m, int b[]) {
	vector<int>vs;
	for(int i = 0; i < n; i++) {
		for(auto x : cen[a[i]]) {
			cnt[x.st] = min(cnt[x.st], x.nd);
			vs.push_back(x.st);
		}
	}
	ll ans = 1e18;
	for(int i = 0; i < m; i++) {
		for(auto x : cen[b[i]]) {
			ans = min(ans, cnt[x.st] + x.nd);
		}
	}
	for(auto x : vs) {
		cnt[x] = 1e18;
	}
	return ans;
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 24276 KB Output is correct
2 Correct 275 ms 33444 KB Output is correct
3 Correct 353 ms 33780 KB Output is correct
4 Correct 309 ms 34172 KB Output is correct
5 Correct 319 ms 34328 KB Output is correct
6 Correct 227 ms 32828 KB Output is correct
7 Correct 295 ms 33808 KB Output is correct
8 Correct 321 ms 33952 KB Output is correct
9 Correct 338 ms 34428 KB Output is correct
10 Correct 221 ms 32832 KB Output is correct
11 Correct 287 ms 33768 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 24020 KB Output is correct
2 Correct 1948 ms 189036 KB Output is correct
3 Correct 2459 ms 258316 KB Output is correct
4 Correct 804 ms 86196 KB Output is correct
5 Correct 3195 ms 338304 KB Output is correct
6 Correct 2686 ms 259232 KB Output is correct
7 Correct 919 ms 67788 KB Output is correct
8 Correct 459 ms 45600 KB Output is correct
9 Correct 1002 ms 82056 KB Output is correct
10 Correct 913 ms 68820 KB Output is correct

Subtask #3
67.0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 24276 KB Output is correct
2 Correct 275 ms 33444 KB Output is correct
3 Correct 353 ms 33780 KB Output is correct
4 Correct 309 ms 34172 KB Output is correct
5 Correct 319 ms 34328 KB Output is correct
6 Correct 227 ms 32828 KB Output is correct
7 Correct 295 ms 33808 KB Output is correct
8 Correct 321 ms 33952 KB Output is correct
9 Correct 338 ms 34428 KB Output is correct
10 Correct 221 ms 32832 KB Output is correct
11 Correct 287 ms 33768 KB Output is correct
12 Correct 15 ms 24020 KB Output is correct
13 Correct 1948 ms 189036 KB Output is correct
14 Correct 2459 ms 258316 KB Output is correct
15 Correct 804 ms 86196 KB Output is correct
16 Correct 3195 ms 338304 KB Output is correct
17 Correct 2686 ms 259232 KB Output is correct
18 Correct 919 ms 67788 KB Output is correct
19 Correct 459 ms 45600 KB Output is correct
20 Correct 1002 ms 82056 KB Output is correct
21 Correct 913 ms 68820 KB Output is correct
22 Correct 2121 ms 192100 KB Output is correct
23 Correct 2186 ms 198928 KB Output is correct
24 Correct 2948 ms 268148 KB Output is correct
25 Correct 3015 ms 267864 KB Output is correct
26 Correct 2913 ms 261792 KB Output is correct
27 Correct 3689 ms 375648 KB Output is correct
28 Correct 1066 ms 115572 KB Output is correct
29 Correct 2967 ms 284032 KB Output is correct
30 Correct 3070 ms 285360 KB Output is correct
31 Correct 2873 ms 285496 KB Output is correct
32 Correct 1058 ms 101588 KB Output is correct
33 Correct 460 ms 60028 KB Output is correct
34 Correct 726 ms 73892 KB Output is correct
35 Correct 761 ms 74788 KB Output is correct
36 Correct 883 ms 79808 KB Output is correct
37 Correct 910 ms 79884 KB Output is correct