Compilare: main.cpp: In function 'int main()': main.cpp:79:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 79 | for (i = 0; i < vsol.size(); i++) | ~~^~~~~~~~~~~~~ main.cpp:47:90: warning: unused variable 'nsol' [-Wunused-variable] 47 | int pow1, pow2, pattern_hash1, current_hash1, pattern_hash2, current_hash2, ns, np, i, nsol; | ^~~~