Submission #472902

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
472902	2021-09-14 13:27:37	soba	Railway (BOI17_railway)	C++14	100 / 100	400 ms	64032 KiB

railway

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int n, l, m , k;
vector<int> adj[100005];
int nodes[100005];
int parent[100005] , level[100005] , sz[100005], sol[100005];
int timer;
vector<int> tin, tout;
vector<vector<int>> up;
set<int>st[100005], en[100005];
void dfs(int v, int p, int lvl)
{
    sz[v]++;
    level[v]=lvl;
    parent[v]=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 (int u : adj[v]) {
        if (u != p)
        {
            dfs(u, v , lvl+1);
            sz[v]+=sz[u];
        }
    }
    tout[v] = ++timer;
 
 
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Compilation message (stderr)

railway.cpp: In function 'int main()':
railway.cpp:95:17: warning: unused variable 'one' [-Wunused-variable]
   95 |     int x , y , one , nd , lcc;
      |                 ^~~
railway.cpp:95:23: warning: unused variable 'nd' [-Wunused-variable]
   95 |     int x , y , one , nd , lcc;
      |                       ^~

• Subtask 1: 8 / 8
• Subtask 2: 15 / 15
• Subtask 3: 7 / 7
• Subtask 4: 29 / 29
• Subtask 5: 16 / 16
• Subtask 6: 25 / 25