oj.uz

Submission #390902

# Submission time Handle Problem Language Result Execution time Memory
390902 2021-04-17T10:45:47 Z SuhaibSawalha1 Sky Walking (IOI19_walk) C++17
10 / 100
 4000 ms 729116 KB 
#include "walk.h"
#include <bits/stdc++.h>
using namespace std;

#define ar array<int, 2>
#define sz(a) ((int)a.size())

int dist (ar &a, ar &b) {
	return abs(a[0] - b[0]) + abs(a[1] - b[1]);
}

bool inter (ar &a, ar &b, ar &c, ar &d) {
	return c[0] <= a[0] && a[0] <= d[0] && a[1] <= c[1] && c[1] <= b[1];
}

long long min_distance(std::vector<int> x, std::vector<int> h, std::vector<int> l, std::vector<int> r, std::vector<int> y, int src, int snk) {
	vector<ar> p;
	vector<vector<int>> seg(sz(x) + sz(y));
	vector<vector<int>> adj((int)1e6);
	auto add = [&] (int i, int j) {
		for (int k : seg[i]) {
			adj[k].push_back(j);
			adj[j].push_back(k);
		}
		seg[i].push_back(j);
	};
	for (int i = 0; i < sz(x); ++i) {
		add(i, sz(p));
		p.push_back({x[i], 0});
		add(i, sz(p));
		p.push_back({x[i], h[i]});
	}
	for (int i = 0; i < sz(y); ++i) {
		add(l[i], sz(p));
		add(sz(x) + i, sz(p));
		p.push_back({x[l[i]], y[i]});
		add(r[i], sz(p));
		add(sz(x) + i, sz(p));
		p.push_back({x[r[i]], y[i]});
		int T = p.size();
		for (int j = 0; j < sz(x); ++j) {
			if (inter(p[2 * j], p[2 * j + 1], p[T - 2], p[T - 1])) {
				add(j, sz(p));
				add(sz(x) + i, sz(p));
				p.push_back({x[j], y[i]});
			}
		}
	}
	priority_queue<pair<long long, int>> pq;
	pq.push({0, 2 * src});
	vector<long long> dis(adj.size(), 1e18);
	dis[2 * src] = 0;
	while (pq.size()) {
		long long d = -pq.top().first;
		int u = pq.top().second;
		pq.pop();
		if (d != dis[u]) {
			continue;
		}
		for (int v : adj[u]) {
			long long dd = dist(p[u], p[v]);
			if (d + dd < dis[v]) {
				dis[v] = d + dd;
				pq.push({-dis[v], v});
			}
		}
	}
	return dis[2 * snk] == 1e18 ? -1 : dis[2 * snk];
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 31564 KB Output is correct
2 Correct 20 ms 31524 KB Output is correct
3 Correct 20 ms 31620 KB Output is correct
4 Correct 20 ms 31596 KB Output is correct
5 Correct 21 ms 31780 KB Output is correct
6 Correct 20 ms 31748 KB Output is correct
7 Correct 20 ms 31804 KB Output is correct
8 Correct 21 ms 31692 KB Output is correct
9 Correct 20 ms 31548 KB Output is correct
10 Correct 21 ms 31932 KB Output is correct
11 Correct 20 ms 31588 KB Output is correct
12 Correct 20 ms 31612 KB Output is correct
13 Correct 22 ms 31528 KB Output is correct
14 Correct 20 ms 31564 KB Output is correct
15 Correct 22 ms 31584 KB Output is correct
16 Correct 20 ms 31632 KB Output is correct
17 Correct 21 ms 31812 KB Output is correct

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 31528 KB Output is correct
2 Correct 20 ms 31564 KB Output is correct
3 Execution timed out 4080 ms 425744 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1235 ms 72816 KB Output is correct
2 Execution timed out 4078 ms 729116 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1235 ms 72816 KB Output is correct
2 Execution timed out 4078 ms 729116 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 31564 KB Output is correct
2 Correct 20 ms 31524 KB Output is correct
3 Correct 20 ms 31620 KB Output is correct
4 Correct 20 ms 31596 KB Output is correct
5 Correct 21 ms 31780 KB Output is correct
6 Correct 20 ms 31748 KB Output is correct
7 Correct 20 ms 31804 KB Output is correct
8 Correct 21 ms 31692 KB Output is correct
9 Correct 20 ms 31548 KB Output is correct
10 Correct 21 ms 31932 KB Output is correct
11 Correct 20 ms 31588 KB Output is correct
12 Correct 20 ms 31612 KB Output is correct
13 Correct 22 ms 31528 KB Output is correct
14 Correct 20 ms 31564 KB Output is correct
15 Correct 22 ms 31584 KB Output is correct
16 Correct 20 ms 31632 KB Output is correct
17 Correct 21 ms 31812 KB Output is correct
18 Correct 20 ms 31528 KB Output is correct
19 Correct 20 ms 31564 KB Output is correct
20 Execution timed out 4080 ms 425744 KB Time limit exceeded
21 Halted 0 ms 0 KB -