Borderou de evaluare (job #13975)

Compilare: user.cpp: In function 'int main()': user.cpp:8:9: warning: unused variable 'p' [-Wunused-variable] user.cpp:8:11: warning: unused variable 'v' [-Wunused-variable] user.cpp:10:5: warning: unused variable 'x' [-Wunused-variable] user.cpp:6:31: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:7:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:9:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]