Borderou de evaluare (job #69729)

Compilare: user.cpp: In function ‘int main()’: user.cpp:40:40: warning: unused variable ‘j’ [-Wunused-variable] user.cpp:40:42: warning: unused variable ‘GATA’ [-Wunused-variable] user.cpp:40:49: warning: unused variable ‘cif’ [-Wunused-variable] user.cpp:40:53: warning: unused variable ‘n2’ [-Wunused-variable] user.cpp:37:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:38:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:81:12: warning: ‘u’ may be used uninitialized in this function [-Wuninitialized]