Borderou de evaluare (job #468608)

Compilare: user.cpp: In function ‘int main()’: user.cpp:44:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:47:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:54:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] 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:32:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:36:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:39:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]