Borderou de evaluare (job #19537)

Compilare: user.cpp: In function 'int main()': user.cpp:40:21: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] user.cpp:33:10: warning: unused variable 'i' [-Wunused-variable] user.cpp:31:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:32:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:37:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:39:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]