Compilare: main.cpp: In function 'int main()': main.cpp:57:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | for(int i=1;i<sol.size();i++){ | ~^~~~~~~~~~~ main.cpp:59:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 59 | while(i<sol.size()&&sol[i]!=n+1){ | ~^~~~~~~~~~~