Compilare: main.cpp: In function 'int flux()': main.cpp:113:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 113 | for (int j = 0; j < path.size() - 1; j++) { | ~~^~~~~~~~~~~~~~~~~ main.cpp:126:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 126 | for (int j = 0; j < path.size() - 1; j++) { | ~~^~~~~~~~~~~~~~~~~ main.cpp:127:45: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 127 | for (int it = 0; it < g[path[j]].size(); ++it) | ~~~^~~~~~~~~~~~~~~~~~~ main.cpp:131:44: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 131 | for(int it = 0; it < g[path[j+1]].size(); ++it) | ~~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:114:29: warning: 'current_flow' may be used uninitialized in this function [-Wmaybe-uninitialized] 114 | int current_flow; | ^~~~~~~~~~~~