Compilare: main.cpp: In lambda function: main.cpp:74:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 74 | for (int i = 0; i < biconex[biconex_id].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:95:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 95 | for (int i = 0; i < biconex[biconex_id].size() && !mask_not_work; i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:96:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 96 | for (int j = i + 1; j < biconex[biconex_id].size() && !mask_not_work; j++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:113:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 113 | for (int i = 0; i < biconex[biconex_id].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In lambda function: main.cpp:136:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 136 | for (int i = 0; i < biconex[node].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:147:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 147 | for (int j = 0; j < kids.size(); j++) { | ~~^~~~~~~~~~~~~ main.cpp: In lambda function: main.cpp:164:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 164 | for (int i = 0; i < biconex[id].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:202:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 202 | auto [biconex, bi_graph] = get_biconex(g); | ^ main.cpp:204:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 204 | auto [sol_cost , sol] = get_sol(s, g, biconex, bi_graph); | ^