Borderou de evaluare (job #68111)

Compilare: user.cpp: In function ‘int main()’: user.cpp:9:21: warning: variable ‘num’ set but not used [-Wunused-but-set-variable] user.cpp:9:27: warning: unused variable ‘num2’ [-Wunused-variable] user.cpp:9:38: warning: variable ‘st’ set but not used [-Wunused-but-set-variable] user.cpp:9:41: warning: unused variable ‘val’ [-Wunused-variable] user.cpp:7:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:8:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:10:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:13:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:17:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:20:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]