#include "bits/stdc++.h"
#include "crocodile.h"
using namespace std;
#define fi first
#define se second
#define pb push_back
#define mp make_pair
void dfs(vector<pair<int, int>> tree[], vector<int> &dist, vector<int> &len, int u, int e)
{
for(auto v: tree[u])
{
if(v.first==e)
continue;
dist[v.fi] = dist[u] + v.se;
len[v.fi] = len[u] + 1;
dfs(tree, dist, len, v.fi, u);
}
}
int travel_plan(int n, int m, int r[][2], int l[], int k, int p[])
{
vector<pair<int, int>> tree[n];
for(int i = 0; i<m; i++)
{
tree[r[i][0]].pb(mp(r[i][1], l[i]));
tree[r[i][1]].pb(mp(r[i][0], l[i]));
}
vector<int> dist(n, 0);
vector<int> len(n, 0);
dfs(tree, dist, len, 0, -1);
int res = 0;
vector<pair<int, int>> v;
for(int i = 0; i<k; i++)
{
v.pb(mp(dist[p[i]], len[p[i]]));
}
sort(all(v));
for(int i = 0; i<k; i++)
{
if(v[i].se<i+1)
{
res = v[i].fi;
break;
}
}
return res;
}
Compilation message
crocodile.cpp: In function 'int travel_plan(int, int, int (*)[2], int*, int, int*)':
crocodile.cpp:43:10: error: 'all' was not declared in this scope
43 | sort(all(v));
| ^~~
