Compilare: main.cpp: In function 'int find(int)': main.cpp:18:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 18 | for(int i=0;i<List[mod].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'void insert(int)': main.cpp:28:13: warning: unused variable 'i' [-Wunused-variable] 28 | int mod,i; | ^ main.cpp: In function 'void erase(int)': main.cpp:39:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for (i = find(x)+1; i <=List[mod].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~