Compilare: main.cpp: In function 'bool Solver::check(std::vector<int>, std::vector<int>)': main.cpp:104:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 104 | while ( i < a.size() && a[i] == b[i] ) | ~~^~~~~~~~~~ main.cpp:107:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 107 | return i == a.size(); | ~~^~~~~~~~~~~