Compilare: main.cpp: In function 'int main()': main.cpp:51:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, double> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 51 | for(j=0; j<la[u].size(); j++) | ~^~~~~~~~~~~~~ main.cpp:13:13: warning: unused variable 's' [-Wunused-variable] 13 | int i,j,s,x,y,c,u,v,n,m,k,fortareata; | ^ main.cpp:13:31: warning: unused variable 'fortareata' [-Wunused-variable] 13 | int i,j,s,x,y,c,u,v,n,m,k,fortareata; | ^~~~~~~~~~ main.cpp:15:9: warning: unused variable 'tata' [-Wunused-variable] 15 | int tata[36001], viz[36001],mn; | ^~~~ main.cpp:15:22: warning: unused variable 'viz' [-Wunused-variable] 15 | int tata[36001], viz[36001],mn; | ^~~ main.cpp:15:33: warning: unused variable 'mn' [-Wunused-variable] 15 | int tata[36001], viz[36001],mn; | ^~