Compilare: main.cpp: In function 'int dfs(int, int, long long int&)': main.cpp:55:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for( ; idx[acc] < G[acc].size(); idx[acc]++) | ~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:6:13: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow] 6 | #define INF 1e18 | ^~~~ main.cpp:94:31: note: in expansion of macro 'INF' 94 | while(int pushed = dfs(S, INF, cost_min)){ | ^~~