Weighted directed undirected

#include<bits/stdc++.h>
using namespace std;
#define suni ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0)
#define ll long long
#define pb push_back
#define F first
#define S second
#define endl "\n"
//undirected
const int mx=1e5+10;
vector<pair<int,int>> adjm[mx];
int main()
{
    suni;
    int n,m;
    cin>>n>>m;
    for(int i=1; i<=m; i++)
    {
        int u,v,w;
        cin>>u>>v>>w;
        adjm[u].pb({v,w});
        adjm[v].pb({u,w});
    }
    for(int i=1; i<=n; i++)
    {
       cout<<"NODE "<<i<<": ";
        for(auto u : adjm[i]) cout<<"to NODE "<<u.F<<" "<<"and COST "<<u.S<<" ";
        cout<<endl;
    }
}

//directed
/*int main()
{
    suni;
    int n,m;
    cin>>n>>m;
    for(int i=1; i<=m; i++)
    {
        int u,v,w;
        cin>>u>>v>>w;
        adjm[u].pb({v,w});
    }
    for(int i=1; i<=n; i++)
    {
       cout<<"NODE "<<i<<": ";
        for(auto u : adjm[i]) cout<<"to NODE "<<u.F<<" "<<"and COST "<<u.S<<" ";
        cout<<endl;
    }
}*/