Compilare: main.cpp: In function 'int main()': main.cpp:53:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<std::pair<long long int, long long int>, std::pair<long long int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for(i=0;i<vec.size();i++) | ~^~~~~~~~~~~ main.cpp:36:19: warning: unused variable 'j' [-Wunused-variable] 36 | long long n,i,j,k,l,o,p,m,a,b,r,pula; | ^ main.cpp:36:21: warning: unused variable 'k' [-Wunused-variable] 36 | long long n,i,j,k,l,o,p,m,a,b,r,pula; | ^ main.cpp:36:23: warning: unused variable 'l' [-Wunused-variable] 36 | long long n,i,j,k,l,o,p,m,a,b,r,pula; | ^ main.cpp:36:25: warning: unused variable 'o' [-Wunused-variable] 36 | long long n,i,j,k,l,o,p,m,a,b,r,pula; | ^ main.cpp:36:27: warning: unused variable 'p' [-Wunused-variable] 36 | long long n,i,j,k,l,o,p,m,a,b,r,pula; | ^ main.cpp:36:37: warning: variable 'pula' set but not used [-Wunused-but-set-variable] 36 | long long n,i,j,k,l,o,p,m,a,b,r,pula; | ^~~~