Compilare: main.cpp: In function 'int main()': main.cpp:89:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<punct>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 89 | for(int i=0;i<queries.size();i+=4) | ~^~~~~~~~~~~~~~~ main.cpp:92:15: warning: unused variable 'b' [-Wunused-variable] 92 | auto& b = queries[i+1]; | ^ main.cpp:93:15: warning: unused variable 'c' [-Wunused-variable] 93 | auto& c = queries[i+2]; | ^