Compilare: main.cpp: In function 'int main()': main.cpp:31:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for(int i=0;i<v[s].size();i++){ | ~^~~~~~~~~~~~ main.cpp:41:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for(int i=0;i<v[s].size();i++){ | ~^~~~~~~~~~~~ main.cpp:23:13: warning: unused variable 'mod' [-Wunused-variable] 23 | int mod=66013; | ^~~