Compilare: main.cpp: In function 'int cauta_muchie(int)': main.cpp:25:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | for(int i=poz[x]; i<a[x].size(); i++){ | ~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:64:18: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 64 | if(sol.size()<m){ | ~~~~~~~~~~^~