Compilare: user.cpp: In function ‘int main()’: user.cpp:12: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:13: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:37: warning: array subscript is above array bounds user.cpp:45: warning: array subscript is above array bounds user.cpp:48: warning: array subscript is above array bounds user.cpp:53: warning: array subscript is above array bounds user.cpp:57: warning: array subscript is above array bounds user.cpp:58: warning: array subscript is above array bounds