Compilare: main.cpp: In function 'void reuniune()': main.cpp:22:9: warning: unused variable 'i' [-Wunused-variable] 22 | int i; | ^ main.cpp: In function 'void intersectie()': main.cpp:43:9: warning: unused variable 'i' [-Wunused-variable] 43 | int i; | ^ main.cpp: In function 'int main()': main.cpp:99:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 99 | for(j = 0; j < mul[numarrandom].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:90:26: warning: 'fin' may be used uninitialized in this function [-Wmaybe-uninitialized] 90 | for(i = start; i <= fin; i += pas) | ~~^~~~~~