#include <bits/stdc++.h>
#pragma GCC optimize("O3")
typedef long long ll;
#define FOR(i,x,y) for(ll i=x; i<y; i++)
#define FORNEG(i,x,y) for(ll i=x; i>y; i--)
#define double long double
using namespace std;
vector<vector<ll>> edges[100005];
int travelTime(int n, int m, int L, int a[], int b[], int t[]){
FOR(i,0,m){
edges[a[i]].push_back({b[i], t[i]});
edges[b[i]].push_back({a[i], t[i]});
}
return 0;
}
Compilation message
/usr/bin/ld: /tmp/ccG33x8J.o: in function `main':
grader.c:(.text.startup+0xd1): undefined reference to `travelTime'
collect2: error: ld returned 1 exit status
