Submission #604685

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
604685	2022-07-25 08:47:01	rrrr10000	Stations (IOI20_stations)	C++14	100 / 100	1095 ms	800 KiB

stations

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<ll> vi;
typedef vector<vi> vvi;
typedef pair<ll,ll> P;
typedef vector<P> vp;
typedef vector<vp> vvp;
typedef vector<bool> vb;
#define rep(i,n) for(ll i=0;i<(ll)(n);i++)
#define REP(i,k,n) for(ll i=(ll)(k);i<(ll)(n);i++)
#define all(a) a.begin(),a.end()
#define fi first
#define se second
#define pb emplace_back
template<class T> void out(T a){cout<<a<<endl;}
template<class T> void outv(T v){rep(i,v.size()){if(i)cout<<' ';cout<<v[i];}cout<<endl;}
vector<int> label(int n,int k,vector<int> a,vector<int> b){
    vvi g(n);
    rep(i,n-1){
        g[a[i]].pb(b[i]);g[b[i]].pb(a[i]);
    }
    vp dp(n);
    dp[0]=P(0,n-1);
    vector<int> res(n);
    vi sub(n,1);
    function<ll(ll,ll)> dfs0=[&](ll i,ll p){
        for(ll x:g[i])if(x!=p)sub[i]+=dfs0(x,i);
        return sub[i];
 
 
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Compilation message (stderr)

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:52:1: warning: control reaches end of non-void function [-Wreturn-type]
   52 | }
      | ^

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