oj.uz

Submission #417260

# Submission time Handle Problem Language Result Execution time Memory
417260 2021-06-03T14:03:08 Z Mlxa Sky Walking (IOI19_walk) C++14
10 / 100
 4000 ms 861780 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;
map<pair<int, int>, int> was;

int id(int x, int y) {
	auto p = mp(x, y);
	if (was.count(p)) {
		return was[p];
	} else {
		int v = (int)was.size();
		assert(v < N);
		return was[p] = v;
	}
}

vector<pair<int, int>> g[N];
set<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];
}

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 = l[i];
		for (int j = l[i] + 1; j <= r[i]; ++j) {
			if (h[j] < y[i]) {
				continue;
			}
			edge(id(x[lst], y[i]), id(x[j], y[i]), abs(x[lst] - x[j]));
			lst = j;
		}
		for (int j = l[i]; j <= r[i]; ++j) {
			if (h[j] >= y[i]) {
				ys[j].insert(y[i]);
			}
		}
	}
	for (int i = 0; i < (int)x.size(); ++i) {
		int ly = 0, lv = id(x[i], 0);
		for (int cur : ys[i]) {
			int ver = id(x[i], cur);
			edge(lv, ver, abs(cur - ly));
			ly = cur, lv = ver;
		}
	}

	int from = id(x[st], 0), to = id(x[fi], 0);
	fill_n(dst, N, INF);
	dst[from] = 0;
	q.emplace(dst[from], from);
	while (q.size()) {
		ll d, w;
		int v, u;
		tie(d, v) = q.top(); q.pop();
		if (d != dst[v]) {
			continue;
		}
		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 93 ms 156736 KB Output is correct
2 Correct 96 ms 156724 KB Output is correct
3 Correct 92 ms 156756 KB Output is correct
4 Correct 98 ms 156768 KB Output is correct
5 Correct 109 ms 156912 KB Output is correct
6 Correct 99 ms 156984 KB Output is correct
7 Correct 94 ms 156868 KB Output is correct
8 Correct 97 ms 156872 KB Output is correct
9 Correct 96 ms 156808 KB Output is correct
10 Correct 98 ms 156992 KB Output is correct
11 Correct 97 ms 156880 KB Output is correct
12 Correct 97 ms 156824 KB Output is correct
13 Correct 97 ms 156740 KB Output is correct
14 Correct 99 ms 156760 KB Output is correct
15 Correct 102 ms 156848 KB Output is correct
16 Correct 101 ms 156844 KB Output is correct
17 Correct 97 ms 156996 KB Output is correct

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 98 ms 156740 KB Output is correct
2 Correct 99 ms 156740 KB Output is correct
3 Correct 2040 ms 288124 KB Output is correct
4 Correct 1671 ms 296124 KB Output is correct
5 Correct 1298 ms 277140 KB Output is correct
6 Correct 2431 ms 262188 KB Output is correct
7 Correct 1411 ms 277112 KB Output is correct
8 Correct 2699 ms 325152 KB Output is correct
9 Correct 1428 ms 275476 KB Output is correct
10 Correct 2284 ms 352648 KB Output is correct
11 Correct 1016 ms 225608 KB Output is correct
12 Correct 550 ms 200904 KB Output is correct
13 Correct 1962 ms 328384 KB Output is correct
14 Execution timed out 4070 ms 162628 KB Time limit exceeded
15 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 261 ms 169344 KB Output is correct
2 Runtime error 3367 ms 861780 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 261 ms 169344 KB Output is correct
2 Runtime error 3367 ms 861780 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 93 ms 156736 KB Output is correct
2 Correct 96 ms 156724 KB Output is correct
3 Correct 92 ms 156756 KB Output is correct
4 Correct 98 ms 156768 KB Output is correct
5 Correct 109 ms 156912 KB Output is correct
6 Correct 99 ms 156984 KB Output is correct
7 Correct 94 ms 156868 KB Output is correct
8 Correct 97 ms 156872 KB Output is correct
9 Correct 96 ms 156808 KB Output is correct
10 Correct 98 ms 156992 KB Output is correct
11 Correct 97 ms 156880 KB Output is correct
12 Correct 97 ms 156824 KB Output is correct
13 Correct 97 ms 156740 KB Output is correct
14 Correct 99 ms 156760 KB Output is correct
15 Correct 102 ms 156848 KB Output is correct
16 Correct 101 ms 156844 KB Output is correct
17 Correct 97 ms 156996 KB Output is correct
18 Correct 98 ms 156740 KB Output is correct
19 Correct 99 ms 156740 KB Output is correct
20 Correct 2040 ms 288124 KB Output is correct
21 Correct 1671 ms 296124 KB Output is correct
22 Correct 1298 ms 277140 KB Output is correct
23 Correct 2431 ms 262188 KB Output is correct
24 Correct 1411 ms 277112 KB Output is correct
25 Correct 2699 ms 325152 KB Output is correct
26 Correct 1428 ms 275476 KB Output is correct
27 Correct 2284 ms 352648 KB Output is correct
28 Correct 1016 ms 225608 KB Output is correct
29 Correct 550 ms 200904 KB Output is correct
30 Correct 1962 ms 328384 KB Output is correct
31 Execution timed out 4070 ms 162628 KB Time limit exceeded
32 Halted 0 ms 0 KB -