Compilare: user.cpp: In member function ‘void Prob::ReadData()’: user.cpp:48:58: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long int*’ [-Wformat=] for(int j=1;j<=i;++j)fscanf(fin,"%d",&a[i][j]); ^ user.cpp:46:48: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d %d %d",&v,&N,&st,&dr); ^ user.cpp:48:59: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int j=1;j<=i;++j)fscanf(fin,"%d",&a[i][j]); ^