Compilare: main.cpp: In member function 'void fordFulkerson::init()': main.cpp:37:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<std::pair<int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | for (int i = 0; i < g.size(); i++){ | ~~^~~~~~~~~~ main.cpp:39:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(int j = 0; j < g[i].size(); j++){ | ~~^~~~~~~~~~~~~ main.cpp: In member function 'bool fordFulkerson::findUpdate(int, int, lli&)': main.cpp:62:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | for (int i = 0; i < eIdxs[u].size(); i++){ | ~~^~~~~~~~~~~~~~~~~ main.cpp:69:50: warning: statement has no effect [-Wunused-value] 69 | if (edges[eI].to == t) found == true; | ~~~~~~^~~~~~~ main.cpp: In function 'std::vector<std::vector<int> > closureGraph(std::vector<std::vector<int> >&)': main.cpp:99:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 99 | for (int i = 0; i < g.size(); i++){ | ~~^~~~~~~~~~ main.cpp:107:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 107 | for (int j = 0; j < g[act].size(); j++){ | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'fgphs gphToFlow(const std::vector<std::vector<int> >&)': main.cpp:130:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 130 | for (int j = 0; j < g[i].size(); j++){ | ~~^~~~~~~~~~~~~