Compilare: user.cpp: In function ‘void ver(int)’: user.cpp:15: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:22: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:25: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:31: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:30: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp: In function ‘int main()’: user.cpp:47: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result