Compilare: user.cpp: In function ‘int main()’: user.cpp:77:39: warning: format ‘%u’ expects argument of type ‘unsigned int*’, but argument 3 has type ‘long unsigned int*’ [-Wformat=] fscanf(f,"%u %u %u %u",&n,&a,&b,&c); ^ user.cpp:77:39: warning: format ‘%u’ expects argument of type ‘unsigned int*’, but argument 4 has type ‘long unsigned int*’ [-Wformat=] user.cpp:77:39: warning: format ‘%u’ expects argument of type ‘unsigned int*’, but argument 5 has type ‘long unsigned int*’ [-Wformat=] user.cpp:77:39: warning: format ‘%u’ expects argument of type ‘unsigned int*’, but argument 6 has type ‘long unsigned int*’ [-Wformat=] user.cpp:77:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%u %u %u %u",&n,&a,&b,&c); ^