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Submission #397819

# Submission time Handle Problem Language Result Execution time Memory
397819 2021-05-03T07:58:51 Z cfalas Stations (IOI20_stations) C++14
0 / 100
 1071 ms 456 KB 
#include "stations.h"
#include<bits/stdc++.h>
using namespace std;
#define mp make_pair
#define INF 10000000
#define MOD 1000000007
#define MID ((l+r)/2)
#define HASHMOD 2305843009213693951
#define ll long long
#define ull unsigned long long
#define F first
#define S second
typedef pair<ll, ll> ii;
typedef pair<ii, int> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef map<int, int> mii;

#define EPS 1e-6
#define FOR(i,n) for(int i=0;i<((int)(n));i++)
#define FORi(i,a,b) for(int i=((int)(a));i<((int)(b));i++)
#define FOA(v, a) for(auto v : a)

vi label(int n, int k, std::vector<int> u, std::vector<int> v) {
	vi labels(n);
	vector<vi> adj(n, vi());
	FOR(i,n-1){
		adj[u[i]].push_back(v[i]);
		adj[v[i]].push_back(u[i]);
	}
	// find hub
	int h=0;
	vector<bool> vis(n, false);
	FOR(i,n) if(adj[i].size()>2){
		h=i;
		labels[i] = 0;
		vis[i] = true;
	}
	int off=1;
	FOA(s,adj[h]){
		int cnt=0;
		bool ff = true;
		while(ff){
			vis[s] = true;
			labels[s] = off+cnt++;
			ff = false;
			FOA(v, adj[s]) if(!vis[v]) s = v, ff=true;
		}
		off+=1000;
	}
	return labels;
}

int find_next_station(int s, int t, std::vector<int> c) {
	//cout<<s<<" "<<t<<endl;
	if(s==0) return 1 + t/1000 * 1000;
	else if(s/1000!=t/1000 || s>t) return *min_element(c.begin(), c.end());
	else return s+1;

}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 288 KB Invalid labels (values out of range). scenario=0, k=1000, vertex=6, label=1001
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 284 KB Invalid labels (duplicates values). scenario=0, label=0
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 284 KB Invalid labels (duplicates values). scenario=1, label=0
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1071 ms 456 KB Output is correct
2 Incorrect 732 ms 400 KB Wrong query response.
3 Halted 0 ms 0 KB -

Subtask #5
0 / 61.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 328 KB Invalid labels (duplicates values). scenario=1, label=0
2 Halted 0 ms 0 KB -