Compilare: main.cpp: In function 'int main()': main.cpp:231:21: warning: comparison of integer expressions of different signedness: 'i64' {aka 'long int'} and 'std::vector<long int, std::allocator<long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 231 | for (i64 i = 0; i < l.size(); i++) { | ~~^~~~~~~~~~ main.cpp:232:23: warning: comparison of integer expressions of different signedness: 'i64' {aka 'long int'} and 'std::vector<long int, std::allocator<long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 232 | for (i64 j = 0; j < c.size(); j++) { | ~~^~~~~~~~~~ main.cpp:247:21: warning: comparison of integer expressions of different signedness: 'i64' {aka 'long int'} and 'std::vector<long int, std::allocator<long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 247 | for (i64 i = 0; i < l.size(); i++) { | ~~^~~~~~~~~~ main.cpp:255:13: warning: comparison of integer expressions of different signedness: 'i64' {aka 'long int'} and 'std::vector<long int, std::allocator<long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 255 | if (j < c.size() - 1) { | ~~^~~~~~~~~~~~~~ main.cpp:264:23: warning: comparison of integer expressions of different signedness: 'i64' {aka 'long int'} and 'std::vector<long int, std::allocator<long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 264 | for (i64 j = 0; j < c.size(); j++) { | ~~^~~~~~~~~~ main.cpp:266:13: warning: comparison of integer expressions of different signedness: 'i64' {aka 'long int'} and 'std::vector<long int, std::allocator<long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 266 | if (i < l.size() - 1) { | ~~^~~~~~~~~~~~~~ main.cpp:282:13: warning: comparison of integer expressions of different signedness: 'i64' {aka 'long int'} and 'std::vector<long int, std::allocator<long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 282 | if (i < l.size() - 1) { | ~~^~~~~~~~~~~~~~ main.cpp:287:13: warning: comparison of integer expressions of different signedness: 'i64' {aka 'long int'} and 'std::vector<long int, std::allocator<long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 287 | if (j < c.size() - 1) { | ~~^~~~~~~~~~~~~~