//#pragma GCC optimize("O3,unroll-loops,Ofast")
//#pragma GCC target("avx2,bmi,bmi2,popcnt,lzcnt")
#include <bits/stdc++.h>
//#include <cstdio>
//#include <iostream>
using namespace std;
#define MAX 100007
#define pb push_back
//#define mp make_pair
#define int long long
#define f first
#define s second
#define vi vector<int>
#define pii pair<int,int>
#define si set<int>
#define vpii vector<pair<int,int>>
const int mod = 1e9+7;
const int INF = 1e18;
// myMap.begin()->first : key
// myMap.begin()->second : value
int epow(int a,int b){int ans=1;while(b){if(b&1) ans*=a;a*=a;ans%=mod;a%=mod;b>>=1;}return ans%mod;}
int gcd(int a,int b) {if(a<b)swap(a,b);while(b){int tmp=b;b=a%b;a=tmp;}return a;}
int mul(int a,int b){return ((a%mod)*(b%mod))%mod;}
int dx[] = {-1, 0, 1, 0};
int dy[] = {0, -1, 0, 1};
#define N 50
int solve(int n, int m, int (*edges)[2], int* l, int k, int *entry)
{
vector<pii> adj[n+5];
for(int i=0;i<m;i++)
{
adj[edges[i][1]].pb({edges[i][0],l[i]}); adj[edges[i][0]].pb({edges[i][1],l[i]});
}
vi exits(k);
for(int i=0;i<k;i++) exits[i]=entry[i];
priority_queue<pii,vector<pii>,greater<pii>> pq;
vector<priority_queue<int>> dp(n+2);
vi vis(n+2);
for(int i=0;i<k;i++)
{
pq.push({0,exits[i]});
vis[exits[i]]=1;
dp[exits[i]].push(0LL); dp[exits[i]].push(0LL);
}
while(pq.size())
{
int node = pq.top().s, cost=pq.top().f;
pq.pop();
if(vis[node]>1) continue;
if(vis[node]++) continue;
if(node==0LL) {return cost;}
//if(cost != )
for(auto u : adj[node])
{
if(dp[u.f].size()<2)
{
dp[u.f].push(cost+u.s);
pq.push({u.s,cost+u.s});
}
else if(dp[u.f].top() > cost+u.s)
{
dp[u.f].pop(); dp[u.f].push(cost+u.s);
pq.push({u.s,cost+u.s});
}
}
}
cout << "BAD\n";
return 0;
}
int travel_plan(int n, int m, int (*r)[2], int* l, int k, int *p) {
return solve(n, m, r, l, k, p);
}
Compilation message
/usr/bin/ld: /tmp/ccSBIhfE.o: in function `main':
grader.cpp:(.text.startup+0x36): undefined reference to `travel_plan(int, int, int (*) [2], int*, int, int*)'
collect2: error: ld returned 1 exit status
