Compilare: main.cpp: In function 'int find(int)': main.cpp:16:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 16 | for(int i=0;i<List[mod].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'void insert(int)': main.cpp:26:13: warning: unused variable 'i' [-Wunused-variable] 26 | int mod,i; | ^ main.cpp: In function 'void erase(int)': main.cpp:37:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | for (i = find(x)+1; i <List[mod].size(); i++) { | ~~^~~~~~~~~~~~~~~~~