Borderou de evaluare (job #29914)

Compilare: user.cpp: In function ‘int main()’: user.cpp:58:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:76:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:86:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:96:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:34:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:35:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:36:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:39:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:44:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]