Borderou de evaluare (job #321879)

Compilare: user.cpp: In function ‘int main()’: user.cpp:41:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] user.cpp:49:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:62:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:27:13: warning: unused variable ‘j’ [-Wunused-variable] user.cpp:25:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:26:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:29:39: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:34:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]