Submission #379505

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
379505	2021-03-18 11:11:48	rocks03	Stations (IOI20_stations)	C++14	100 / 100	1125 ms	1308 KiB

stations

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//#pragma GCC target("avx2")
//#pragma GCC optimization("O3")
//#pragma GCC optimization("unroll-loops")
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define ff first
#define ss second
#define pb push_back
#define SZ(x) ((int)(x).size())
#define all(x) x.begin(), x.end()
#define debug(x) cout << #x << ": " << x << " "
#define nl cout << "\n"
#define rep(i, a, b) for(int i = (a); i < (b); i++)
#define per(i, a, b) for(int i = (a); i >= (b); i--)
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const int MAXN = 1e3;
vector<int> g[MAXN];
int timer, tin[MAXN], tou[MAXN];
void dfs(int v, int d, vector<int>& labels){
    tin[v] = timer++;
    for(int u : g[v]){
        g[u].erase(find(all(g[u]), v));
        dfs(u, d ^ 1, labels);
    }
    tou[v] = timer++;
 
 
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Compilation message (stderr)

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:83:1: warning: control reaches end of non-void function [-Wreturn-type]
   83 | }
      | ^

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