Borderou de evaluare (job #143280)

Compilare: user.cpp: In function ‘int main()’: user.cpp:14:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:16:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:20:26: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 3 has type ‘long long int’ [-Wformat] user.cpp:9:20: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]