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:51:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<G[im].size();j++) ^ user.cpp:48:13: 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; ^ user.cpp:43:13: warning: unused variable ‘u’ [-Wunused-variable] pereche u,w; ^ user.cpp:43:15: warning: unused variable ‘w’ [-Wunused-variable] pereche u,w; ^ user.cpp: In function ‘void Citeste()’: user.cpp:29:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&n,&m); ^ user.cpp:33:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d %d",&x,&u.y,&u.c); ^