Compilare: main.cpp: In function 'll getval(ll, std::vector<int>)': main.cpp:74:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 74 | for(int i=0;i<aux.size();i++) | ~^~~~~~~~~~~ main.cpp:94:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 94 | for(int i=0;i<r.size();i++) | ~^~~~~~~~~ main.cpp:101:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 101 | for(int i=0;i<r.size();i++) | ~^~~~~~~~~ main.cpp:108:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 108 | for(int i=0,l=lg/2+1,c=lg/2+1;i<r.size();i++,l--) | ~^~~~~~~~~ main.cpp:117:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 117 | for(int i=1,l=lg/2+2,c=lg/2+1;i<r.size();i++,l++) | ~^~~~~~~~~ main.cpp:126:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 126 | for(int i=1,l=lg/2+1,c=lg/2;i<r.size();i++,c--) | ~^~~~~~~~~ main.cpp:135:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 135 | for(int i=1,l=lg/2+1,c=lg/2+2;i<r.size();i++,c++) | ~^~~~~~~~~ main.cpp: In function 'int main()': main.cpp:153:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 153 | for(int i=0;i<s.size();i++) | ~^~~~~~~~~ main.cpp: In function 'll getval(ll, std::vector<int>)': main.cpp:146:1: warning: control reaches end of non-void function [-Wreturn-type] 146 | } | ^