oj.uz

Submission #623181

# Submission time Handle Problem Language Result Execution time Memory
623181 2022-08-05T09:40:08 Z Dremix10 Sky Walking (IOI19_walk) C++17
10 / 100
 4000 ms 1048576 KB 
#include "walk.h"
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>

using namespace std;
typedef long long ll;
typedef pair<int,int> pi;
typedef pair<ll,ll> pl;
#define F first
#define S second
#define all(x) (x).begin(),(x).end()
#ifdef dremix
    #define p(x) cerr<<#x<<" = "<<x<<endl;
    #define p2(x,y) cerr<<#x<<" , "<<#y<<" = "<<x<<" , "<<y<<endl;
    #define pp(x) cerr<<#x<<" = "<<x.F<<"-"<<x.S<<endl;
    #define pv(x) cerr<<#x<<" = {";for(auto v : x)cerr<<v<<", ";cerr<<"}"<<endl;
    #define ppv(x) cerr<<#x<<" = {";for(auto v : x)cerr<<v.F<<"-"<<v.S<<", ";cerr<<"}"<<endl;
#else
    #define p(x) {}
    #define p2(x,y) {}
	#define pp(x) {}
    #define pv(x) {}
    #define ppv(x) {}
#endif
const int N = 3e5+5;
const int MOD = 1e9+7;
const ll INF = 1e18+5;

struct ano{
	int x,who;
	ll d;

	bool operator<(const ano &x)const{
		return d > x.d;
	}
};

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> > a(n+m+1);

	int i,j;
	vector<vector<pi> > in(n),out(n);
	for(j=0;j<m;j++){
		in[l[j]].push_back({y[j],n+j});
		out[r[j]].push_back({y[j],n+j});
	}
	set<pi> st;
	for(i=0;i<n;i++){
		for(auto &x : in[i])st.insert(x);

		for(auto &x : st){
			if(x.F > h[i])break;
			j = x.S;
			a[i].push_back(j);
			a[j].push_back(i);
		}

		for(auto &x : out[i])st.erase(x);
	}
	//if(n > 50)assert(0);
	priority_queue<ano> q;
	
	vector<__gnu_pbds::gp_hash_table<int,ll> > d(n+m+1,__gnu_pbds::gp_hash_table<int,ll>());
	//vector<pl> dd(n+m,{INF);
	
	q.push({s,n+m,0});

	int cnter=0;
	for(i=0;i<n+m;i++){
		for(auto &v : a[i]){
			d[i][v] = INF;
			cnter++;
		}
	}
	if(n>50)
		assert(cnter <= (m*10*2));
	d[s][n+m] = 0;
	y.push_back(0);
	//dd[s] = {0,h[s]};
	int cost;
	bool sky;
	ll gg;
	ano temp;
	while(!q.empty()){
		temp = q.top();
		q.pop();

		sky = false;
		if(temp.x >= n)sky = true;
		gg = d[temp.x][temp.who];
		if(temp.d > gg)continue;
		
		for(auto &v : a[temp.x]){
			//if(v == temp.who)continue;
			
			if(sky)
				cost = abs(x[temp.who] - x[v]);
			else
				cost = abs(y[temp.who-n] - y[v-n]);
			//ggg = d[v][temp.x];
			
			//d[temp.x][v] = min(d[temp.x][v], gg + cost);
			if(d[v][temp.x] > gg + cost){
				d[v][temp.x] = gg + cost;
				d[temp.x][v] = gg + cost;
				q.push({v,temp.x,gg+cost});
			}
		}
	}
	ll ans = INF;
	for(auto v : a[g]){
		ans = min(ans,d[g][v]+y[v-n]);
	}
	if(ans == INF)ans = -1;
	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 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 0 ms 212 KB Output is correct
17 Correct 1 ms 352 KB Output is correct

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 3598 ms 143344 KB Output is correct
4 Correct 603 ms 160600 KB Output is correct
5 Correct 316 ms 137940 KB Output is correct
6 Correct 266 ms 127064 KB Output is correct
7 Correct 291 ms 138176 KB Output is correct
8 Execution timed out 4101 ms 187232 KB Time limit exceeded
9 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 31528 KB Output is correct
2 Runtime error 1583 ms 1048576 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 87 ms 31528 KB Output is correct
2 Runtime error 1583 ms 1048576 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 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 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 0 ms 212 KB Output is correct
17 Correct 1 ms 352 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 3598 ms 143344 KB Output is correct
21 Correct 603 ms 160600 KB Output is correct
22 Correct 316 ms 137940 KB Output is correct
23 Correct 266 ms 127064 KB Output is correct
24 Correct 291 ms 138176 KB Output is correct
25 Execution timed out 4101 ms 187232 KB Time limit exceeded
26 Halted 0 ms 0 KB -