Compilare: user.cpp: In function ‘void Citeste()’: user.cpp:26:15: warning: unused variable ‘y’ [-Wunused-variable] int i, x, y, c; ^ user.cpp:26:18: warning: unused variable ‘c’ [-Wunused-variable] int i, x, y, c; ^ user.cpp: In function ‘void Dijkstra()’: user.cpp:52:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<G[im].size();j++) ^ user.cpp:49:13: warning: unused variable ‘i’ [-Wunused-variable] int i,j,im,y,c; ^ user.cpp:42:9: warning: unused variable ‘z’ [-Wunused-variable] int z,lg; ^