oj.uz

Submission #743610

# Submission time Handle Problem Language Result Execution time Memory
743610 2023-05-17T14:34:22 Z RushB Swapping Cities (APIO20_swap) C++17
0 / 100
 436 ms 46148 KB 
//happier ending for folks like us? 
#include "swap.h"
#include <bits/stdc++.h>
using namespace std;
const int N = 4e5 + 15, M = 2e5 + 5, L = 21, INF = 0x3f3f3f3f;
int p[N], dpr[N], pr[N][L], ext[N], P[N], h[N], rt, D[N], deg[N];
vector<int> adj[N], Wtmp;
inline void smin(int &a, int b) {a = min(a, b);}
void dfs(int v) {
	for (int i = 1; i < L; i++) pr[v][i] = pr[pr[v][i - 1]][i - 1];
	for (auto u: adj[v]) {
		pr[u][0] = v;
		h[u] = h[v] + 1;
		dfs(u);
		smin(ext[v], ext[u]);
	}
}
int gpr(int u) {return dpr[u] == u ? u : dpr[u] = gpr(dpr[u]);}
bool merge(int u, int v, int id) {
	int tu = u, tv = v;
	deg[tu]++, deg[tv]++;
	u = gpr(u), v = gpr(v);
	if (u == v) return false;
	dpr[u] = id + M;
	dpr[v] = id + M;
	D[id + M] = max({D[u], D[v], deg[tu], deg[tv]});
	adj[id + M].push_back(u);
	adj[id + M].push_back(v);
	return true;
}
void init(int n, int m, std::vector<int> U, std::vector<int> V, std::vector<int> W) {
	iota(p, p + m, 0);
	sort(p, p + m, [&](const int x, const int y) {return W[x] < W[y];});
	iota(dpr, dpr + N, 0);
	memset(ext, 0x3f, sizeof ext);
	Wtmp = W;
	for (int i = 0; i < m; i++) {
		const int id = p[i];
		if (!merge(U[id], V[id], id)) {
			smin(ext[U[id]], W[id]);
			smin(ext[V[id]], W[id]);
		}
	}
	rt = gpr(0), pr[rt][0] = rt, dfs(rt);
}
int getMinimumFuelCapacity(int X, int Y) {
	if (h[X] < h[Y]) swap(X, Y);
	while (h[Y] < h[X]) X = pr[X][__lg(h[X] - h[Y])];
	for (int i = L - 1; i >= 0; i--) if (pr[Y][i] != pr[X][i]) 
		Y = pr[Y][i], X = pr[X][i];
	int lca = pr[X][0], l = lca - M, w = Wtmp[l];
	if (D[lca] > 2) return w;
	w = max(w, ext[lca]);
	return w >= INF ? -1 : w;
}

Subtask #1
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 12756 KB Output is correct
2 Correct 7 ms 12812 KB Output is correct
3 Correct 7 ms 12756 KB Output is correct
4 Correct 7 ms 12884 KB Output is correct
5 Correct 8 ms 13012 KB Output is correct
6 Correct 8 ms 13088 KB Output is correct
7 Correct 8 ms 13060 KB Output is correct
8 Correct 9 ms 13140 KB Output is correct
9 Correct 109 ms 31912 KB Output is correct
10 Correct 134 ms 36168 KB Output is correct
11 Correct 126 ms 35724 KB Output is correct
12 Correct 145 ms 37140 KB Output is correct
13 Correct 178 ms 41036 KB Output is correct
14 Correct 112 ms 31936 KB Output is correct
15 Correct 227 ms 38156 KB Output is correct
16 Correct 253 ms 37436 KB Output is correct
17 Correct 235 ms 38824 KB Output is correct
18 Correct 436 ms 42756 KB Output is correct
19 Incorrect 86 ms 19340 KB Output isn't correct
20 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 12756 KB Output is correct
2 Correct 7 ms 12812 KB Output is correct
3 Incorrect 363 ms 46148 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 12756 KB Output is correct
2 Correct 7 ms 12812 KB Output is correct
3 Correct 7 ms 12756 KB Output is correct
4 Correct 7 ms 12884 KB Output is correct
5 Correct 8 ms 13012 KB Output is correct
6 Correct 8 ms 13088 KB Output is correct
7 Correct 8 ms 13060 KB Output is correct
8 Correct 9 ms 13140 KB Output is correct
9 Correct 7 ms 12756 KB Output is correct
10 Correct 8 ms 13012 KB Output is correct
11 Correct 8 ms 13012 KB Output is correct
12 Correct 7 ms 13012 KB Output is correct
13 Correct 7 ms 12976 KB Output is correct
14 Correct 7 ms 13012 KB Output is correct
15 Incorrect 8 ms 13012 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 12756 KB Output is correct
2 Correct 7 ms 12756 KB Output is correct
3 Correct 7 ms 12812 KB Output is correct
4 Correct 7 ms 12756 KB Output is correct
5 Correct 7 ms 12884 KB Output is correct
6 Correct 8 ms 13012 KB Output is correct
7 Correct 8 ms 13088 KB Output is correct
8 Correct 8 ms 13060 KB Output is correct
9 Correct 9 ms 13140 KB Output is correct
10 Correct 109 ms 31912 KB Output is correct
11 Correct 134 ms 36168 KB Output is correct
12 Correct 126 ms 35724 KB Output is correct
13 Correct 145 ms 37140 KB Output is correct
14 Correct 178 ms 41036 KB Output is correct
15 Correct 8 ms 13012 KB Output is correct
16 Correct 8 ms 13012 KB Output is correct
17 Correct 7 ms 13012 KB Output is correct
18 Correct 7 ms 12976 KB Output is correct
19 Correct 7 ms 13012 KB Output is correct
20 Incorrect 8 ms 13012 KB Output isn't correct
21 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 12756 KB Output is correct
2 Correct 7 ms 12812 KB Output is correct
3 Correct 7 ms 12756 KB Output is correct
4 Correct 7 ms 12884 KB Output is correct
5 Correct 8 ms 13012 KB Output is correct
6 Correct 8 ms 13088 KB Output is correct
7 Correct 8 ms 13060 KB Output is correct
8 Correct 9 ms 13140 KB Output is correct
9 Correct 109 ms 31912 KB Output is correct
10 Correct 134 ms 36168 KB Output is correct
11 Correct 126 ms 35724 KB Output is correct
12 Correct 145 ms 37140 KB Output is correct
13 Correct 178 ms 41036 KB Output is correct
14 Correct 112 ms 31936 KB Output is correct
15 Correct 227 ms 38156 KB Output is correct
16 Correct 253 ms 37436 KB Output is correct
17 Correct 235 ms 38824 KB Output is correct
18 Correct 436 ms 42756 KB Output is correct
19 Incorrect 363 ms 46148 KB Output isn't correct
20 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 12756 KB Output is correct
2 Correct 7 ms 12756 KB Output is correct
3 Correct 7 ms 12812 KB Output is correct
4 Correct 7 ms 12756 KB Output is correct
5 Correct 7 ms 12884 KB Output is correct
6 Correct 8 ms 13012 KB Output is correct
7 Correct 8 ms 13088 KB Output is correct
8 Correct 8 ms 13060 KB Output is correct
9 Correct 9 ms 13140 KB Output is correct
10 Correct 109 ms 31912 KB Output is correct
11 Correct 134 ms 36168 KB Output is correct
12 Correct 126 ms 35724 KB Output is correct
13 Correct 145 ms 37140 KB Output is correct
14 Correct 178 ms 41036 KB Output is correct
15 Correct 112 ms 31936 KB Output is correct
16 Correct 227 ms 38156 KB Output is correct
17 Correct 253 ms 37436 KB Output is correct
18 Correct 235 ms 38824 KB Output is correct
19 Correct 436 ms 42756 KB Output is correct
20 Incorrect 363 ms 46148 KB Output isn't correct
21 Halted 0 ms 0 KB -