Compilare: user.cpp:10: warning: non-local variable ‘<anonymous struct> c [63002]’ uses anonymous type user.cpp:10: warning: non-local variable ‘<anonymous struct> x’ uses anonymous type user.cpp:10: warning: non-local variable ‘<anonymous struct> y’ uses anonymous type user.cpp:10: warning: non-local variable ‘<anonymous struct> b [63002]’ uses anonymous type user.cpp: In function ‘int main()’: user.cpp:18: warning: format ‘%c’ expects type ‘char*’, but argument 3 has type ‘int*’ user.cpp:23: warning: format ‘%c’ expects type ‘char*’, but argument 3 has type ‘int*’ user.cpp:17: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:18: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result