Compilare: main.cpp: In function 'void bellmann(int)': main.cpp:28:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | for(int i=0;i<graf[x.second].size();i++) | ~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:19:9: warning: unused variable 'cost_partial' [-Wunused-variable] 19 | int cost_partial; | ^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:48:21: warning: unused variable 'q' [-Wunused-variable] 48 | int n,m,i,j,k,t,q,nr,minim,maxim,suma; | ^ main.cpp:48:23: warning: unused variable 'nr' [-Wunused-variable] 48 | int n,m,i,j,k,t,q,nr,minim,maxim,suma; | ^~ main.cpp:48:26: warning: unused variable 'minim' [-Wunused-variable] 48 | int n,m,i,j,k,t,q,nr,minim,maxim,suma; | ^~~~~ main.cpp:48:32: warning: unused variable 'maxim' [-Wunused-variable] 48 | int n,m,i,j,k,t,q,nr,minim,maxim,suma; | ^~~~~ main.cpp:48:38: warning: unused variable 'suma' [-Wunused-variable] 48 | int n,m,i,j,k,t,q,nr,minim,maxim,suma; | ^~~~