traffic.cpp:9:7: error: 'll' does not name a type
9 | const ll mod = 1e9 + 7;
| ^~
traffic.cpp:10:7: error: 'll' does not name a type
10 | const ll inf = 2e9;
| ^~
traffic.cpp: In function 'int LocateCentre(int, int*, int*, int*)':
traffic.cpp:44:11: error: 'inf' was not declared in this scope; did you mean 'ynf'?
44 | int mn = inf, ans;
| ^~~
| ynf
traffic.cpp:48:4: error: 'ans' was not declared in this scope; did you mean 'abs'?
48 | ans = i;
| ^~~
| abs
traffic.cpp:52:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
52 | return ans;
| ^~~
| abs