Problem	railway
User	goose
Submission Time	2026-09-26 15:29:55
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

railway.cpp: In function ‘void dfs(long long int, long long int, long long int)’:
railway.cpp:13:8: error: no match for ‘operator[]’ (operand types are ‘long long int [100004]’ and ‘__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type’ {aka ‘std::pair<long long int, long long int>’})
13 | dist[adj[i][j]] = dist[pa] + adj[i][j].second;
| ^
railway.cpp:14:21: error: cannot convert ‘__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type’ {aka ‘std::pair<long long int, long long int>’} to ‘long long int’
14 | dfs(adj[i][j],i,d);
| ^
| |
| __gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::