Compilare: main.cpp: In function 'int main()': main.cpp:82:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 82 | for(t=0;t<v.size();t++) | ~^~~~~~~~~ main.cpp:60:9: warning: unused variable 'm' [-Wunused-variable] 60 | int m,k,t,i,j; | ^ main.cpp:60:11: warning: unused variable 'k' [-Wunused-variable] 60 | int m,k,t,i,j; | ^