Submission #432807

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
432807	2021-06-18 13:27:48	Rouge_Hugo	Stations (IOI20_stations)	C++14	0 / 100	900 ms	596 KiB

stations

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#include<bits/stdc++.h>
#include "stations.h"
#define ll long long
#define fi first
#define se second
#define pb push_back
using namespace std;
const int N=1009;
int la[N];
vector<int>v[N];int re=-1;
void dfs(int x,int p)
{
    la[x]=++re;
    for(auto it:v[x])
    {
        if(it==p)continue;
        dfs(it,x);
    }
}
vector<int> label(int n, int k,vector<int> U, vector<int> V) {
  vector<int> l(n);
  for(int  i=0;i<n-1;i++)
    {
        v[U[i]].pb(V[i]);
        v[V[i]].pb(U[i]);
    }
    int root=0;
    for(int i=0;i<n;i++)if(v[i].size()==1)root=i;re=-1;
    dfs(root,-1);
    for(int i=0;i<n;i++)l[i]=la[i];
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:28:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   28 |     for(int i=0;i<n;i++)if(v[i].size()==1)root=i;re=-1;
      |     ^~~
stations.cpp:28:50: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   28 |     for(int i=0;i<n;i++)if(v[i].size()==1)root=i;re=-1;
      |                                                  ^~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 16
• Subtask 4: 0 / 10
• Subtask 5: 0 / 61