Compilare: main.cpp: In lambda function: main.cpp:73:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 73 | for (int i = 0; i < biconex[biconex_id].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:94:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 94 | for (int i = 0; i < biconex[biconex_id].size() && !mask_not_work; i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:95:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 95 | for (int j = i + 1; j < biconex[biconex_id].size() && !mask_not_work; j++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:112:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 112 | for (int i = 0; i < biconex[biconex_id].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In lambda function: main.cpp:134:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 134 | for (int i = 0; i < biconex[node].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:145:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 145 | for (int j = 0; j < kids.size(); j++) { | ~~^~~~~~~~~~~~~ main.cpp: In lambda function: main.cpp:162:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 162 | for (int i = 0; i < biconex[id].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'std::pair<int, std::vector<int> > get_sol(const std::vector<int>&, const Graph&, const std::vector<std::vector<int> >&, const Graph&)': main.cpp:72:10: warning: variable 'get_masks' set but not used [-Wunused-but-set-variable] 72 | auto get_masks = [&](int biconex_id) { | ^~~~~~~~~ main.cpp: In function 'int main()': main.cpp:200:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 200 | auto [biconex, bi_graph] = get_biconex(g); | ^ main.cpp:202:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 202 | auto [sol_cost , sol] = get_sol(s, g, biconex, bi_graph); | ^