Compilare: user.cpp: In function ‘void Dijkstra()’: user.cpp:49:13: warning: unused variable ‘j’ [-Wunused-variable] int j,im,y,c; ^ user.cpp:44:9: warning: unused variable ‘z’ [-Wunused-variable] int z,lg; ^ user.cpp: In function ‘void Citeste()’: user.cpp:32:28: 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:36:41: 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); ^