oj.uz

Submission #417273

# Submission time Handle Problem Language Result Execution time Memory
417273 2021-06-03T14:14:04 Z Mlxa Sky Walking (IOI19_walk) C++14
10 / 100
 4000 ms 370280 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define all(x) x.begin(), x.end()
#define mp make_pair
#define mt make_tuple
#define x first
#define y second
#include "walk.h"

namespace my {
const int N = 2e6 + 10;

int ff = 0;
vector<pair<int, int>> g[N];
vector<pair<int, int>> ys[N];

void edge(int v, int u, int w) {
	g[v].emplace_back(u, w);
	g[u].emplace_back(v, w);
}

using T = pair<ll, int>;
const ll INF = 1e18;
priority_queue<T, vector<T>, greater<T>> q;
ll dst[N];
int ground[N];

bool wastl = false;
int iter = 0;
bool istl() {
	if (wastl) {
		return true;
	}
	++iter;
	if (iter & 1023) {
		return false;
	}
	return wastl = clock() > 3.95L * CLOCKS_PER_SEC;
}
}

ll min_distance(vector<int> x, vector<int> h, vector<int> l, vector<int> r, vector<int> y, int st, int fi) {
	using namespace my;
	for (int i = 0; i < (int)y.size(); ++i) {
		int lst = -1, lv = -1;
		for (int j = l[i]; j <= r[i]; ++j) {
			if (h[j] < y[i]) {
				continue;
			}
			int v = ff++;
			ys[j].emplace_back(y[i], v);
			if (lst != -1) {
				edge(v, lv, abs(x[lst] - x[j]));
			}
			lst = j;
			lv = v;
		}
	}
	for (int i = 0; i < (int)x.size(); ++i) {
		ground[i] = ff++;
		sort(all(ys[i]));
		int ly = 0, lv = ground[i];
		for (auto cur : ys[i]) {
			edge(cur.y, lv, abs(cur.x - ly));
			tie(ly, lv) = cur;
		}
	}

	int from = ground[st], to = ground[fi];
	fill_n(dst, N, INF);
	dst[from] = 0;
	q.emplace(dst[from], from);
	while (q.size() && !istl()) {
		ll d, w;
		int v, u;
		tie(d, v) = q.top(); q.pop();
		if (d != dst[v]) {
			continue;
		}
		if (v == to) {
			break;
		}
		for (auto e : g[v]) {
			u = e.x, w = e.y;
			if (dst[u] > dst[v] + w) {
				dst[u] = dst[v] + w;
				q.emplace(dst[u], u);
			}
		}
	}
	if (dst[to] > INF / 2) {
		return -1;
	}
	return dst[to];
}

#ifdef LC
#include "grader.cpp"
#endif

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 58 ms 109764 KB Output is correct
2 Correct 58 ms 109832 KB Output is correct
3 Correct 59 ms 109884 KB Output is correct
4 Correct 60 ms 109800 KB Output is correct
5 Correct 58 ms 109968 KB Output is correct
6 Correct 58 ms 109808 KB Output is correct
7 Correct 58 ms 109868 KB Output is correct
8 Correct 60 ms 109816 KB Output is correct
9 Correct 58 ms 109852 KB Output is correct
10 Correct 58 ms 109864 KB Output is correct
11 Correct 58 ms 109764 KB Output is correct
12 Correct 59 ms 109864 KB Output is correct
13 Correct 59 ms 109900 KB Output is correct
14 Correct 60 ms 109768 KB Output is correct
15 Correct 59 ms 109868 KB Output is correct
16 Correct 62 ms 109800 KB Output is correct
17 Correct 60 ms 109920 KB Output is correct

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 58 ms 109764 KB Output is correct
2 Correct 57 ms 109820 KB Output is correct
3 Correct 429 ms 156688 KB Output is correct
4 Correct 655 ms 162400 KB Output is correct
5 Correct 453 ms 155588 KB Output is correct
6 Correct 1175 ms 150824 KB Output is correct
7 Correct 444 ms 155628 KB Output is correct
8 Correct 573 ms 168440 KB Output is correct
9 Correct 509 ms 154916 KB Output is correct
10 Correct 857 ms 180896 KB Output is correct
11 Correct 306 ms 136864 KB Output is correct
12 Correct 261 ms 128164 KB Output is correct
13 Correct 779 ms 174092 KB Output is correct
14 Execution timed out 4051 ms 106948 KB Time limit exceeded
15 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 141 ms 118672 KB Output is correct
2 Runtime error 475 ms 370280 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 141 ms 118672 KB Output is correct
2 Runtime error 475 ms 370280 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 58 ms 109764 KB Output is correct
2 Correct 58 ms 109832 KB Output is correct
3 Correct 59 ms 109884 KB Output is correct
4 Correct 60 ms 109800 KB Output is correct
5 Correct 58 ms 109968 KB Output is correct
6 Correct 58 ms 109808 KB Output is correct
7 Correct 58 ms 109868 KB Output is correct
8 Correct 60 ms 109816 KB Output is correct
9 Correct 58 ms 109852 KB Output is correct
10 Correct 58 ms 109864 KB Output is correct
11 Correct 58 ms 109764 KB Output is correct
12 Correct 59 ms 109864 KB Output is correct
13 Correct 59 ms 109900 KB Output is correct
14 Correct 60 ms 109768 KB Output is correct
15 Correct 59 ms 109868 KB Output is correct
16 Correct 62 ms 109800 KB Output is correct
17 Correct 60 ms 109920 KB Output is correct
18 Correct 58 ms 109764 KB Output is correct
19 Correct 57 ms 109820 KB Output is correct
20 Correct 429 ms 156688 KB Output is correct
21 Correct 655 ms 162400 KB Output is correct
22 Correct 453 ms 155588 KB Output is correct
23 Correct 1175 ms 150824 KB Output is correct
24 Correct 444 ms 155628 KB Output is correct
25 Correct 573 ms 168440 KB Output is correct
26 Correct 509 ms 154916 KB Output is correct
27 Correct 857 ms 180896 KB Output is correct
28 Correct 306 ms 136864 KB Output is correct
29 Correct 261 ms 128164 KB Output is correct
30 Correct 779 ms 174092 KB Output is correct
31 Execution timed out 4051 ms 106948 KB Time limit exceeded
32 Halted 0 ms 0 KB -