Compilare: main.cpp: In lambda function: main.cpp:115:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 115 | for (int i = 0; i < biconex[node].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:122:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 122 | for (int i = 0; i < biconex[node].size() && ok; i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:126:35: 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 < g[cur_node].size() && ok; j++) { | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:137:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 137 | for (int i = 0; i < biconex[node].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:148:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 148 | for (int j = 0; j < kids.size(); j++) { | ~~^~~~~~~~~~~~~ main.cpp:160:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 160 | for (int i = 0; i < biconex[node].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In lambda function: main.cpp:170:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 170 | for (int i = 0; i < biconex[id].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:215:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 215 | auto [biconex, bi_graph] = get_biconex(g); | ^ main.cpp:217:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 217 | auto [sol_cost , sol] = get_sol(s, g, biconex, bi_graph); | ^