Borderou de evaluare (job #523278)

Compilare: user.cpp: In function 'int main()': user.cpp:56:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:44:10: warning: unused variable 'ch' [-Wunused-variable] user.cpp:41:31: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:42:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:45:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:48:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:55:20: warning: ignoring return value of 'char* gets(char*)', declared with attribute warn_unused_result [-Wunused-result] /tmp/cc9iimXx.o: In function `main': user.cpp:(.text.startup+0x114): warning: the `gets' function is dangerous and should not be used.