Compilare: main.cpp: In member function 'std::vector<int> Task::merge(std::vector<int>, const std::vector<int>&, int*)': main.cpp:25:18: warning: left operand of comma operator has no effect [-Wunused-value] 25 | for (i, j; i < l1.size() && j < l2.size(); ) { | ^ main.cpp:25:22: warning: right operand of comma operator has no effect [-Wunused-value] 25 | for (i, j; i < l1.size() && j < l2.size(); ) { | ^ main.cpp:25:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | for (i, j; i < l1.size() && j < l2.size(); ) { | ~~^~~~~~~~~~~ main.cpp:25:43: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | for (i, j; i < l1.size() && j < l2.size(); ) { | ~~^~~~~~~~~~~ main.cpp:36:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for ( ; i < l1.size(); ++i) { | ~~^~~~~~~~~~~ main.cpp:39:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for ( ; j < l2.size(); ++j) { | ~~^~~~~~~~~~~