Compilare: main.cpp: In function 'int main()': main.cpp:79:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 79 | for (i = 0; i < vsol.size(); i++) | ~~^~~~~~~~~~~~~ main.cpp: In function 'long long int bs1(long long int, long long int, long long int)': main.cpp:28:9: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] 28 | return sol; | ^~~ main.cpp: In function 'int main()': main.cpp:16:12: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] 16 | int mij, sol; | ^~~