Compilare: main.cpp: In function 'void dijkstra2(int)': main.cpp:69:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Nod>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 69 | for(i=0;i<L2[w].size();i++) | ~^~~~~~~~~~~~~ main.cpp:41:11: warning: unused variable 'poz' [-Wunused-variable] 41 | int i,poz,c,j,sub,w; | ^~~ main.cpp:41:15: warning: unused variable 'c' [-Wunused-variable] 41 | int i,poz,c,j,sub,w; | ^ main.cpp: In function 'void dijkstra1(int)': main.cpp:116:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 116 | for(i=0;i<L[x.nod].size();i++) | ~^~~~~~~~~~~~~~~~ main.cpp:90:11: warning: unused variable 'poz' [-Wunused-variable] 90 | int i,poz,c,j,sub; | ^~~ main.cpp:90:15: warning: unused variable 'c' [-Wunused-variable] 90 | int i,poz,c,j,sub; | ^ main.cpp:90:17: warning: unused variable 'j' [-Wunused-variable] 90 | int i,poz,c,j,sub; | ^ main.cpp: In function 'int main()': main.cpp:153:56: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] 153 | vk[k+1]=n;sel[n][0]=1; sel[n][1]=k+1; nrs=(nrs|(1<<k+1)); | ~^~