Problem	railway
User	ensonchew
Submission Time	2025-10-07 21:58:01
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

railway.cpp: In function ‘void dfs(long long int, long long int)’:
railway.cpp:8:23: error: cannot convert ‘std::pair<long long int, long long int>’ to ‘long long int’ in initialization
8 | for (int i: adjlist[x]){
| ^
railway.cpp: At global scope:
railway.cpp:3:13: error: expected ‘,’ or ‘...’ before ‘long’
3 | #define int long long
| ^~~~
railway.cpp:13:15: note: in expansion of macro ‘int’
13 | int lca(int x int y){
| ^~~
railway.cpp: In function ‘int main()’:
railway.cpp:39:46: error: too many arguments to function ‘long long int lca(long long int)’
39 | cout << dist[a] + dist[b] - 2*dist[lca(a, b)]
| ^
railway.cpp:13:5: note: declared here
13 | int lca(int x int y){
| ^~~
railway.cpp:39:48: error: expected ‘;’ before ‘}’ token
39 | cout << dist[a] + dist[b]