traffic.cpp: In function 'int dfs(int, int)':
traffic.cpp:16:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
16 | for(int i=0;i<adj[v].size();i++)
| ~^~~~~~~~~~~~~~
traffic.cpp: At global scope:
traffic.cpp:24:6: error: ambiguating new declaration of 'void LocateCentre(int, int*, int*, int*)'
24 | void LocateCentre(int n,int w[],int u[],int v[])
| ^~~~~~~~~~~~
In file included from traffic.cpp:2:
traffic.h:1:5: note: old declaration 'int LocateCentre(int, int*, int*, int*)'
1 | int LocateCentre(int N, int P[], int S[], int D[]);
| ^~~~~~~~~~~~
traffic.cpp: In function 'void LocateCentre(int, int*, int*, int*)':
traffic.cpp:39:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
39 | for(int j=0;j<adj[i].size();j++)
| ~^~~~~~~~~~~~~~
traffic.cpp:50:12: error: return-statement with a value, in function returning 'void' [-fpermissive]
50 | return ans;
| ^~~