Compilare: main.cpp: In function 'std::vector<int> delete_equals(std::vector<int>)': main.cpp:152:13: warning: unused variable 'n' [-Wunused-variable] 152 | int n = (int)v.size(); | ^ main.cpp: In function 'int main()': main.cpp:427:21: warning: unused variable 'sol' [-Wunused-variable] 427 | int sol = 0; | ^~~