Eroare de compilare: main.cpp: In function 'int main()': main.cpp:8:27: error: redeclaration of 'int u' 8 | int n,m,i,u,v,w,src,d,u; | ^ main.cpp:8:15: note: 'int u' previously declared here 8 | int n,m,i,u,v,w,src,d,u; | ^ main.cpp:28:18: 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(i=0;i<g[u].size();++i){ | ~^~~~~~~~~~~~ Non zero exit status: 1