Borderou de evaluare (job #305800)

Compilare: user.cpp: In function ‘int main()’: user.cpp:51:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:66:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:49:11: warning: unused variable ‘s’ [-Wunused-variable] user.cpp:30:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:31:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:33:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:38:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]