Compilare: main.cpp: In function 'void bicon(int)': main.cpp:46:26: warning: comparison of integer expressions of different signedness: 'std::stack<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 46 | while (st.size() > sz) { | ~~~~~~~~~~^~~~ main.cpp: In function 'bool checkFull(std::vector<int>&)': main.cpp:61:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | for (int i = 0; i < v.size() - 1; ++i) | ~~^~~~~~~~~~~~~~ main.cpp:62:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | for (int j = i + 1; j < v.size(); ++j) | ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:125:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 125 | while (grad[i] < con[i].size()) { | ~~~~~~~~^~~~~~~~~~~~~~~