Borderou de evaluare (job #486041)

Compilare: user.cpp: In function 'int main()': user.cpp:148:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:103:12: warning: unused variable 'st' [-Wunused-variable] user.cpp:103:16: warning: unused variable 'dr' [-Wunused-variable] user.cpp:101:32: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:102:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:107:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:109:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]