Compilare: main.c: In function 'main': main.c:10:18: warning: format '%d' expects argument of type 'int *', but argument 3 has type 'long unsigned int *' [-Wformat=] fscanf(fin,"%d%d",&a,&b); ^ main.c:10:20: warning: format '%d' expects argument of type 'int *', but argument 4 has type 'long unsigned int *' [-Wformat=] fscanf(fin,"%d%d",&a,&b); ^ main.c:23:20: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long unsigned int' [-Wformat=] fprintf(fout,"%d",a); ^ main.c:10:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&a,&b); ^~~~~~~~~~~~~~~~~~~~~~~~