Compilare: user.cpp:4: warning: suggest parentheses around ‘+’ inside ‘<<’ user.cpp: In function ‘void dinamica()’: user.cpp:11: warning: suggest parentheses around ‘+’ inside ‘<<’ user.cpp:23: warning: suggest parentheses around arithmetic in operand of ‘|’ user.cpp: In function ‘int main()’: user.cpp:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result