Submission #482902

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
482902	2021-10-26 17:10:31	PoPularPlusPlus	Railway (BOI17_railway)	C++17	100 / 100	107 ms	27988 KiB

railway

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#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ull unsigned long long 
#define pb(e) push_back(e)
#define sv(a) sort(a.begin(),a.end())
#define sa(a,n) sort(a,a+n)
#define mp(a,b) make_pair(a,b)
#define vf first
#define vs second
#define ar array
#define all(x) x.begin(),x.end()
const int inf = 0x3f3f3f3f;
const int mod = 1000000007; 
const double PI=3.14159265358979323846264338327950288419716939937510582097494459230;
bool remender(ll a , ll b){return a%b;}
const int N = 100002 , l = 25;
int n , m , k;
vector<pair<int,int>> adj[N];
int cnt[N],timer,tin[N], tout[N],up[N][l + 5];
vector<int> ans;
void dfs(int v, int p){
    tin[v] = ++timer;
    up[v][0] = p;
    for (int i = 1; i <= l; ++i)
        up[v][i] = up[up[v][i-1]][i-1];
    for (auto &[u,ldonewjfjiwjjfosfojg] : adj[v]) {
 
 
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• Subtask 1: 8 / 8
• Subtask 2: 15 / 15
• Subtask 3: 7 / 7
• Subtask 4: 29 / 29
• Subtask 5: 16 / 16
• Subtask 6: 25 / 25