Borderou de evaluare (job #309802)

Compilare: user.cpp: In function ‘int main()’: user.cpp:23:39: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] user.cpp:26:23: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] user.cpp:26:48: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] user.cpp:27:27: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] user.cpp:27:56: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] user.cpp:9:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:10:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:12:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:14:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]