Compilare: user.cpp: In function ‘void Dijkstra(int)’: user.cpp:63:59: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long int’ [-Wformat=] D[i]==oo ? fprintf(fout,"0") : fprintf(fout,"%d ",D[i]); ^ user.cpp: In function ‘void ReadData()’: user.cpp:16:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d",&N,&M); ^ user.cpp:19:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d %d",&x,&y,&c); ^