oj.uz

Submission #768637

# Submission time Handle Problem Language Result Execution time Memory
768637 2023-06-28T10:21:31 Z marvinthang Sky Walking (IOI19_walk) C++17
43 / 100
 545 ms 52284 KB 
#include "walk.h"
/*************************************
*    author: marvinthang             *
*    created: 28.06.2023 15:43:09    *
*************************************/

#include <bits/stdc++.h>

using namespace std;

#define                  fi  first
#define                  se  second
#define                left  ___left
#define               right  ___right
#define                TIME  (1.0 * clock() / CLOCKS_PER_SEC)
#define             MASK(i)  (1LL << (i))
#define           BIT(x, i)  ((x) >> (i) & 1)
#define  __builtin_popcount  __builtin_popcountll
#define              ALL(v)  (v).begin(), (v).end()
#define           REP(i, n)  for (int i = 0, _n = (n); i < _n; ++i)
#define          REPD(i, n)  for (int i = (n); i--; )
#define        FOR(i, a, b)  for (int i = (a), _b = (b); i < _b; ++i) 
#define       FORD(i, b, a)  for (int i = (b), _a = (a); --i >= _a; ) 
#define       FORE(i, a, b)  for (int i = (a), _b = (b); i <= _b; ++i) 
#define      FORDE(i, b, a)  for (int i = (b), _a = (a); i >= _a; --i) 
#define        scan_op(...)  istream & operator >> (istream &in, __VA_ARGS__ &u)
#define       print_op(...)  ostream & operator << (ostream &out, const __VA_ARGS__ &u)
#ifdef LOCAL
    #include "debug.h"
#else
    #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
    #define DB(...) 23
    #define db(...) 23
    #define debug(...) 23
#endif

template <class U, class V> scan_op(pair <U, V>)  { return in >> u.first >> u.second; }
template <class T> scan_op(vector <T>)  { for (size_t i = 0; i < u.size(); ++i) in >> u[i]; return in; }
template <class U, class V> print_op(pair <U, V>)  { return out << '(' << u.first << ", " << u.second << ')'; }
template <size_t i, class T> ostream & print_tuple_utils(ostream &out, const T &tup) { if constexpr(i == tuple_size<T>::value) return out << ")";  else return print_tuple_utils<i + 1, T>(out << (i ? ", " : "(") << get<i>(tup), tup); }
template <class ...U> print_op(tuple<U...>) { return print_tuple_utils<0, tuple<U...>>(out, u); }
template <class Con, class = decltype(begin(declval<Con>()))> typename enable_if <!is_same<Con, string>::value, ostream&>::type operator << (ostream &out, const Con &con) { out << '{'; for (__typeof(con.begin()) it = con.begin(); it != con.end(); ++it) out << (it == con.begin() ? "" : ", ") << *it; return out << '}'; }
template <class A, class B> bool minimize(A &a, B b)  { if (a > b) { a = b; return true; } return false; }
template <class A, class B> bool maximize(A &a, B b)  { if (a < b) { a = b; return true; } return false; }

// end of template

const long long INF = 1e18;

long long min_distance(vector <int> x, vector <int> h, vector <int> l, vector <int> r, vector <int> y, int s, int g) {
	int n = x.size();
	int m = l.size();
	vector <vector <int>> startAt(n), endAt(n);
	REP(i, m) {
		startAt[l[i]].push_back(i);
		endAt[r[i]].push_back(i);
	}
	map <int, int> heights;
	vector <vector <int>> yy(n);
	vector <vector <pair <int, int>>> adj;
	vector <int> pref(n);
	auto add_edge = [&] (int u, int v, int w) {
		adj[u].emplace_back(w, v);
		adj[v].emplace_back(w, u);
	};
	REP(i, n) {
		if (i) pref[i] = pref[i - 1] + yy[i - 1].size();
		if (i == s || i == g) {
			yy[i].push_back(0);
			for (int j: startAt[i]) yy[i].push_back(y[j]);
			for (int j: endAt[i]) yy[i].push_back(y[j]);
			for (auto it: heights) if (it.fi <= h[i]) yy[i].push_back(it.fi);
			sort(ALL(yy[i]));
			yy[i].erase(unique(ALL(yy[i])), yy[i].end());
			adj.resize(pref[i] + yy[i].size());
			REP(j, (int) yy[i].size() - 1) add_edge(pref[i] + j, pref[i] + j + 1, yy[i][j + 1] - yy[i][j]);
		} else {
			for (int j: startAt[i]) {
				yy[i].push_back(y[j]);
				auto it = heights.lower_bound(y[j]);
				if (it != heights.begin()) yy[i].push_back(prev(it)->fi);
			}
			for (int j: endAt[i]) {
				yy[i].push_back(y[j]);
				auto it = heights.lower_bound(y[j]);
				if (it != heights.begin()) yy[i].push_back(prev(it)->fi);
			}
			sort(ALL(yy[i]));
			yy[i].erase(unique(ALL(yy[i])), yy[i].end());
			adj.resize(pref[i] + yy[i].size());
			for (int j: startAt[i]) {
				int p = lower_bound(ALL(yy[i]), y[j]) - yy[i].begin();
				if (p) add_edge(pref[i] + p - 1, pref[i] + p, yy[i][p] - yy[i][p - 1]);
			}
			for (int j: endAt[i]) {
				int p = lower_bound(ALL(yy[i]), y[j]) - yy[i].begin();
				if (p) add_edge(pref[i] + p - 1, pref[i] + p, yy[i][p] - yy[i][p - 1]);
			}
		}

		REP(j, yy[i].size()) if (heights.count(yy[i][j])) {
			int k = heights[yy[i][j]];
			int p = lower_bound(ALL(yy[k]), yy[i][j]) - yy[k].begin();
			add_edge(pref[k] + p, pref[i] + j, x[i] - x[k]);
			heights[yy[i][j]] = i;
		}

		for (int j: endAt[i]) heights.erase(y[j]);
		for (int j: startAt[i]) heights[y[j]] = i;
	}
	priority_queue <pair <long long, int>, vector <pair <long long, int>>, greater <pair <long long, int>>> pq;
	vector <long long> dist(adj.size(), INF);
	pq.emplace(dist[pref[s]] = 0, pref[s]);
	while (!pq.empty()) {
		auto [du, u] = pq.top(); pq.pop();
		if (du != dist[u]) continue;
		for (auto [w, v]: adj[u]) if (minimize(dist[v], du + w)) pq.emplace(dist[v], v);
	}
	return dist[pref[g]] < INF ? dist[pref[g]] : -1;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 296 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 296 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 228 ms 33288 KB Output is correct
4 Correct 211 ms 48184 KB Output is correct
5 Correct 149 ms 38476 KB Output is correct
6 Correct 137 ms 36672 KB Output is correct
7 Correct 137 ms 41960 KB Output is correct
8 Correct 228 ms 34268 KB Output is correct
9 Correct 186 ms 45628 KB Output is correct
10 Incorrect 223 ms 50736 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 9636 KB Output is correct
2 Correct 316 ms 36360 KB Output is correct
3 Correct 340 ms 35620 KB Output is correct
4 Correct 393 ms 47204 KB Output is correct
5 Correct 516 ms 48416 KB Output is correct
6 Correct 491 ms 48620 KB Output is correct
7 Correct 161 ms 29892 KB Output is correct
8 Correct 112 ms 33508 KB Output is correct
9 Correct 466 ms 49916 KB Output is correct
10 Correct 156 ms 35572 KB Output is correct
11 Correct 10 ms 4820 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 9636 KB Output is correct
2 Correct 316 ms 36360 KB Output is correct
3 Correct 340 ms 35620 KB Output is correct
4 Correct 393 ms 47204 KB Output is correct
5 Correct 516 ms 48416 KB Output is correct
6 Correct 491 ms 48620 KB Output is correct
7 Correct 161 ms 29892 KB Output is correct
8 Correct 112 ms 33508 KB Output is correct
9 Correct 466 ms 49916 KB Output is correct
10 Correct 156 ms 35572 KB Output is correct
11 Correct 10 ms 4820 KB Output is correct
12 Correct 343 ms 35648 KB Output is correct
13 Correct 316 ms 47084 KB Output is correct
14 Correct 514 ms 48460 KB Output is correct
15 Correct 277 ms 41584 KB Output is correct
16 Correct 295 ms 42496 KB Output is correct
17 Correct 324 ms 46856 KB Output is correct
18 Correct 278 ms 41588 KB Output is correct
19 Correct 302 ms 43684 KB Output is correct
20 Correct 182 ms 29732 KB Output is correct
21 Correct 27 ms 9676 KB Output is correct
22 Correct 198 ms 39276 KB Output is correct
23 Correct 194 ms 39460 KB Output is correct
24 Correct 146 ms 32908 KB Output is correct
25 Correct 160 ms 39384 KB Output is correct
26 Correct 121 ms 30340 KB Output is correct
27 Correct 545 ms 52284 KB Output is correct
28 Correct 253 ms 46792 KB Output is correct
29 Correct 460 ms 48700 KB Output is correct
30 Correct 167 ms 30064 KB Output is correct
31 Correct 443 ms 49888 KB Output is correct
32 Correct 138 ms 31512 KB Output is correct
33 Correct 144 ms 33328 KB Output is correct
34 Correct 182 ms 37940 KB Output is correct
35 Correct 163 ms 39084 KB Output is correct
36 Correct 122 ms 34772 KB Output is correct
37 Correct 115 ms 30412 KB Output is correct
38 Correct 109 ms 36664 KB Output is correct
39 Correct 215 ms 43460 KB Output is correct
40 Correct 116 ms 33680 KB Output is correct
41 Correct 123 ms 31888 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 296 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 296 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 228 ms 33288 KB Output is correct
21 Correct 211 ms 48184 KB Output is correct
22 Correct 149 ms 38476 KB Output is correct
23 Correct 137 ms 36672 KB Output is correct
24 Correct 137 ms 41960 KB Output is correct
25 Correct 228 ms 34268 KB Output is correct
26 Correct 186 ms 45628 KB Output is correct
27 Incorrect 223 ms 50736 KB Output isn't correct
28 Halted 0 ms 0 KB -