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Submission #432792

# Submission time Handle Problem Language Result Execution time Memory
432792 2021-06-18T13:24:18 Z Hazem Stations (IOI20_stations) C++14
0 / 100
 835 ms 656 KB 
#include "stations.h"
#include <vector>
#include <bits/stdc++.h>

using namespace std;

const int N = 2e3;
int cnt = 0;

int dfs(int i,int pre,vector<int> &ret,vector<int> adj[]){

	int mx = cnt;
	ret[i] = cnt++;
	
	for(int j=0;j<adj[i].size();j++){
		int v = adj[i][j];
		if(v==pre)continue;

		mx = max(mx,dfs(v,i,ret,adj));
	}
	//ret[i] += mx*1000;
	return mx;
}

std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
	
	cnt = 0;
	vector<int>adj[N];
	for(int i=0;i<n-1;i++){
		adj[u[i]].push_back(v[i]);
		adj[v[i]].push_back(u[i]);
	}
	vector<int> ret = vector<int>(n,0);
	dfs(0,0,ret,adj);
	return ret;
}

int get_val(int x,int l,int r){

	int ret = 0;
	return x%1000;
	for(int i=l;i<=r;i++)
		ret |= (1<<(i-l))*(((1<<i)&x)>0);
	return ret;
}

bool cmp(int x,int y){

	return get_val(x,0,9)<get_val(y,0,9);
}

int find_next_station(int s, int t, std::vector<int> c) {
	
	if(s<t)
		return s+1;
	else 
		return s-1;
}

Compilation message

stations.cpp: In function 'int dfs(int, int, std::vector<int>&, std::vector<int>*)':
stations.cpp:15:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |  for(int j=0;j<adj[i].size();j++){
      |              ~^~~~~~~~~~~~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 583 ms 616 KB Wrong query response.
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 447 ms 492 KB Wrong query response.
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 554 ms 656 KB Wrong query response.
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 835 ms 480 KB Output is correct
2 Incorrect 653 ms 616 KB Wrong query response.
3 Halted 0 ms 0 KB -

Subtask #5
0 / 61.0

# Verdict Execution time Memory Grader output
1 Incorrect 506 ms 656 KB Wrong query response.
2 Halted 0 ms 0 KB -