oj.uz

Submission #1070714

# Submission time Handle Problem Language Result Execution time Memory
1070714 2024-08-22T17:08:57 Z Gray Sky Walking (IOI19_walk) C++17
24 / 100
 3488 ms 1048576 KB 
#include "walk.h"
#include<bits/stdc++.h>
using namespace std;

#define ff first
#define ss second
#define ln "\n"
#define ll long long
#define ld long double
const ll inf=2e18;
struct Graph{
	vector<vector<pair<ll, ll>>> A;
	vector<pair<ll, ll>> id;
	ll sz, ind;
	Graph(){
		sz=0; ind=0;
	}
	ll add_node(ll x, ll y){
		A.push_back(vector<pair<ll, ll>>());
		id.push_back({x, y});
		ind++; sz++;
		return ind-1;
	}
	void add_edge(ll u, ll v, ll w){
		A[u].push_back({v, w});
		A[v].push_back({u, w});
	}
	ll shortest(ll s, ll g){
		vector<ll> dist(sz, -1);
		set<pair<ll, ll>> que;
		que.insert({0, s});
		while (!que.empty()){
			auto cur = *que.begin();
			que.erase(que.begin());
			if (dist[cur.ss]!=-1) continue;
			dist[cur.ss]=cur.ff;
			for (auto v:A[cur.ss]){
				if (dist[v.ff]==-1) que.insert({cur.ff+v.ss, v.ff});
			}
		}
		return dist[g];
	}
	void debug(){
		for (ll i=0; i<sz; i++){
			cout << id[i].ff << "," << id[i].ss << ": ";
			for (auto v:A[i]){
				cout << id[v.ff].ff << "," << id[v.ff].ss << "-" << v.ss << " ";
			}
			cout << ln;
		}
	}
};

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 s, int g) {
	ll n = x.size(), m=l.size();
	set<pair<ll, pair<ll, ll>>> bd;
	Graph gr;

	for (ll i=0; i<n; i++){
		ll cn = gr.add_node(x[i], 0);
		if (i==s) s=cn;
		if (i==g) g=cn;
		bd.insert({i, {cn, 0}});
	}
	map<ll, pair<vector<ll>, vector<ll>>> ev;
	for (ll i=0; i<n; i++){
		ev[h[i]].ss.push_back(i);
	}
	for (ll i=0; i<m; i++){
		ev[y[i]].ff.push_back(i);
	}
	for (auto &[height, data]:ev){
		for (auto bi:data.ff){
			auto cur = bd.lower_bound({l[bi], {-1, -1}});
			ll prev=-1, prevx=-1;
			// cout << l[bi] << " " << r[bi] << " -> " << (*cur).ff << endl;
			// continue;
			while ((*cur).ff<=r[bi] and (*cur).ff>=l[bi]){
				// cout << &cur << endl;
				ll ti = (*cur).ff;
				if ((*cur).ss.ss<y[bi]){
					ll nw = gr.add_node(x[ti], y[bi]);
					gr.add_edge(nw, (*cur).ss.ff, y[bi]-(*cur).ss.ss);
					bd.erase(cur);
					bd.insert({ti, {nw, y[bi]}});
					cur = bd.find({ti, {nw, y[bi]}});
				}
				if (prev!=-1){
					gr.add_edge(prev, (*cur).ss.ff, x[ti]-prevx);
				}
				prevx=x[ti]; prev=(*cur).ss.ff;
				if ((*cur)==*bd.rbegin()) break;
				cur++;
			}
		}
		for (auto hsi:data.ss){
			bd.erase(bd.lower_bound({hsi, {-1, -1}}));
		}
	}
	// gr.debug();
	return gr.shortest(s, g);
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 432 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 651 ms 108868 KB Output is correct
4 Correct 784 ms 134204 KB Output is correct
5 Correct 500 ms 113472 KB Output is correct
6 Correct 414 ms 103740 KB Output is correct
7 Correct 470 ms 116136 KB Output is correct
8 Correct 748 ms 134072 KB Output is correct
9 Correct 528 ms 114236 KB Output is correct
10 Correct 895 ms 179264 KB Output is correct
11 Correct 406 ms 73092 KB Output is correct
12 Correct 424 ms 69212 KB Output is correct
13 Correct 832 ms 153664 KB Output is correct
14 Correct 242 ms 59484 KB Output is correct
15 Correct 200 ms 45408 KB Output is correct
16 Correct 232 ms 45248 KB Output is correct
17 Correct 225 ms 43728 KB Output is correct
18 Correct 170 ms 56728 KB Output is correct
19 Correct 7 ms 2836 KB Output is correct
20 Correct 68 ms 28472 KB Output is correct
21 Correct 188 ms 44124 KB Output is correct
22 Correct 226 ms 45284 KB Output is correct
23 Correct 221 ms 58196 KB Output is correct
24 Correct 205 ms 45344 KB Output is correct
25 Correct 214 ms 43612 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 12664 KB Output is correct
2 Correct 3488 ms 659968 KB Output is correct
3 Runtime error 2155 ms 1048576 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 12664 KB Output is correct
2 Correct 3488 ms 659968 KB Output is correct
3 Runtime error 2155 ms 1048576 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 432 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 651 ms 108868 KB Output is correct
21 Correct 784 ms 134204 KB Output is correct
22 Correct 500 ms 113472 KB Output is correct
23 Correct 414 ms 103740 KB Output is correct
24 Correct 470 ms 116136 KB Output is correct
25 Correct 748 ms 134072 KB Output is correct
26 Correct 528 ms 114236 KB Output is correct
27 Correct 895 ms 179264 KB Output is correct
28 Correct 406 ms 73092 KB Output is correct
29 Correct 424 ms 69212 KB Output is correct
30 Correct 832 ms 153664 KB Output is correct
31 Correct 242 ms 59484 KB Output is correct
32 Correct 200 ms 45408 KB Output is correct
33 Correct 232 ms 45248 KB Output is correct
34 Correct 225 ms 43728 KB Output is correct
35 Correct 170 ms 56728 KB Output is correct
36 Correct 7 ms 2836 KB Output is correct
37 Correct 68 ms 28472 KB Output is correct
38 Correct 188 ms 44124 KB Output is correct
39 Correct 226 ms 45284 KB Output is correct
40 Correct 221 ms 58196 KB Output is correct
41 Correct 205 ms 45344 KB Output is correct
42 Correct 214 ms 43612 KB Output is correct
43 Correct 54 ms 12664 KB Output is correct
44 Correct 3488 ms 659968 KB Output is correct
45 Runtime error 2155 ms 1048576 KB Execution killed with signal 9
46 Halted 0 ms 0 KB -