Compilare: user.cpp: In function ‘void ciur()’: user.cpp:20: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp: In function ‘int main()’: user.cpp:56: warning: format ‘%d’ expects type ‘int’, but argument 3 has type ‘long long int’ user.cpp:45: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:49: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result