Compilare: main.cpp: In function 'int main()': main.cpp:97:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 97 | for(int i = 0; i < bic[c].size(); i ++) | ~~^~~~~~~~~~~~~~~ main.cpp:109:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 109 | for(int i = 0; i < bic[c].size() && !ind; i ++) | ~~^~~~~~~~~~~~~~~ main.cpp:113:24: 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 = ind; i < bic[c].size(); i ++) | ~~^~~~~~~~~~~~~~~