Compilare: main.cpp: In function 'void dijkstra(int, int)': main.cpp:4:29: warning: suggest parentheses around '-' inside '>>' [-Wparentheses] 4 | #define inf 0xFFFFFFFF >> 1 - 1 | ~~^~~ main.cpp:15:32: note: in expansion of macro 'inf' 15 | d = vector<int>(n + 1, inf); | ^~~ main.cpp:24:21: warning: unused variable 'cost' [-Wunused-variable] 24 | int cost = pq.top().first; | ^~~~ main.cpp: In function 'int main()': main.cpp:4:29: warning: suggest parentheses around '-' inside '>>' [-Wparentheses] 4 | #define inf 0xFFFFFFFF >> 1 - 1 | ~~^~~ main.cpp:58:28: note: in expansion of macro 'inf' 58 | if(d[i] == inf) | ^~~ main.cpp:58:25: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} and 'unsigned int' [-Wsign-compare] 58 | if(d[i] == inf)