Eroare de compilare: user.cpp:9: error: ‘M’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:23: error: ‘v’ was not declared in this scope user.cpp:23: error: ‘M’ was not declared in this scope user.cpp:27: error: ‘v’ was not declared in this scope user.cpp:27: error: ‘M’ was not declared in this scope user.cpp:31: error: ‘v’ was not declared in this scope user.cpp:31: error: ‘M’ was not declared in this scope user.cpp:30: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:15: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:16: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result