Submission #915098

#	Time	Username	Problem	Language	Result	Execution time	Memory
915098		Abito	Village (BOI20_village)	C++14	12 / 100	1014 ms	2652 KiB

Village

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#define F first
#define S second
#define pb push_back
#define ppb pop_back
#define ep insert
#define endl '\n'
#define elif else if
#define pow pwr
#define sqrt sqrtt
#define int long long
#define ll long long
#define y1 YONE
#define free freeee
#define lcm llcm
/*
⠄⠄⠄⠄⢠⣿⣿⣿⣿⣿⢻⣿⣿⣿⣿⣿⣿⣿⣿⣯⢻⣿⣿⣿⣿⣆⠄⠄⠄
⠄⠄⣼⢀⣿⣿⣿⣿⣏⡏⠄⠹⣿⣿⣿⣿⣿⣿⣿⣿⣧⢻⣿⣿⣿⣿⡆⠄⠄
⠄⠄⡟⣼⣿⣿⣿⣿⣿⠄⠄⠄⠈⠻⣿⣿⣿⣿⣿⣿⣿⣇⢻⣿⣿⣿⣿⠄⠄
⠄⢰⠃⣿⣿⠿⣿⣿⣿⠄⠄⠄⠄⠄⠄⠙⠿⣿⣿⣿⣿⣿⠄⢿⣿⣿⣿⡄⠄
⠄⢸⢠⣿⣿⣧⡙⣿⣿⡆⠄⠄⠄⠄⠄⠄⠄⠈⠛⢿⣿⣿⡇⠸⣿⡿⣸⡇⠄
⠄⠈⡆⣿⣿⣿⣿⣦⡙⠳⠄⠄⠄⠄⠄⠄⢀⣠⣤⣀⣈⠙⠃⠄⠿⢇⣿⡇⠄
⠄⠄⡇⢿⣿⣿⣿⣿⡇⠄⠄⠄⠄⠄⣠⣶⣿⣿⣿⣿⣿⣿⣷⣆⡀⣼⣿⡇⠄
⠄⠄⢹⡘⣿⣿⣿⢿⣷⡀⠄⢀⣴⣾⣟⠉⠉⠉⠉⣽⣿⣿⣿⣿⠇⢹⣿⠃⠄
⠄⠄⠄⢷⡘⢿⣿⣎⢻⣷⠰⣿⣿⣿⣿⣦⣀⣀⣴⣿⣿⣿⠟⢫⡾⢸⡟⠄.
⠄⠄⠄⠄⠻⣦⡙⠿⣧⠙⢷⠙⠻⠿⢿⡿⠿⠿⠛⠋⠉⠄⠂⠘⠁⠞⠄⠄⠄
⠄⠄⠄⠄⠄⠈⠙⠑⣠⣤⣴⡖⠄⠿⣋⣉⣉⡁⠄⢾⣦⠄⠄⠄⠄⠄⠄⠄⠄
*/
typedef unsigned long long ull;
using namespace std;
const int N=1e3+5;
int dis[N][N],n;
vector<int> adj[N];
void dfs(int x,int p,int s,int d){
    dis[s][x]=d;
    for (auto u:adj[x]) if (u!=p) dfs(u,x,s,d+1);
    return;
}
int32_t main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
    cin>>n;
    for (int i=1;i<n;i++){
        int x,y;
        cin>>x>>y;
        adj[x].pb(y);
        adj[y].pb(x);
    }
    for (int i=1;i<=n;i++) dfs(i,0,i,0);
    int mn=LLONG_MAX,mx=LLONG_MIN;
    vector<int> v1,v2,v;
    for (int i=1;i<=n;i++) v.pb(i);
    do{
        bool ok=true;
        for (int i=0;i<v.size();i++) ok&=(v[i]!=i+1);
        if (!ok) continue;
        int c=0;
        for (int i=0;i<v.size();i++) c+=dis[i+1][v[i]];
        if (c<mn){
            mn=c;
            v1=v;
        }
        if (c>mx){
            mx=c;
            v2=v;
        }
    }while(next_permutation(v.begin(),v.end()));
    cout<<mn<<' '<<mx<<endl;
    for (auto u:v1) cout<<u<<' ';cout<<endl;
    for (auto u:v2) cout<<u<<' ';cout<<endl;
    return 0;
}

Compilation message (stderr)

Village.cpp: In function 'int32_t main()':
Village.cpp:55:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |         for (int i=0;i<v.size();i++) ok&=(v[i]!=i+1);
      |                      ~^~~~~~~~~
Village.cpp:58:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |         for (int i=0;i<v.size();i++) c+=dis[i+1][v[i]];
      |                      ~^~~~~~~~~
Village.cpp:69:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   69 |     for (auto u:v1) cout<<u<<' ';cout<<endl;
      |     ^~~
Village.cpp:69:34: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   69 |     for (auto u:v1) cout<<u<<' ';cout<<endl;
      |                                  ^~~~
Village.cpp:70:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   70 |     for (auto u:v2) cout<<u<<' ';cout<<endl;
      |     ^~~
Village.cpp:70:34: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   70 |     for (auto u:v2) cout<<u<<' ';cout<<endl;
      |                                  ^~~~

• Subtask 1: 12 / 12
• Subtask 2: 0 / 38
• Subtask 3: 0 / 50