Compilare: main.cpp: In function 'std::vector<int> adun(std::vector<int>, std::vector<int>)': main.cpp:31:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for( j = 0; j < v1.size(); j++ ){ | ~~^~~~~~~~~~~ main.cpp:32:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | if( j >= v2.size()) | ~~^~~~~~~~~~~~ main.cpp:44:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | for( j = 0; j < v2.size(); j++ ){ | ~~^~~~~~~~~~~ main.cpp:45:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | if( j > v1.size()) | ~~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:62:15: warning: unused variable 'j' [-Wunused-variable] 62 | int i, n, j; | ^