Problem	railway
User	polyda
Submission Time	2025-10-07 16:31:25
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

railway.cpp: In function ‘long long int lca(long long int, long long int)’:
railway.cpp:29:20: error: ‘j’ was not declared in this scope
29 | if(p[x][i]!=p[x][j]){
| ^
railway.cpp: In function ‘int main()’:
railway.cpp:52:10: error: ‘k’ was not declared in this scope
52 | p[i][k]=-1;
| ^