Borderou de evaluare (job #247471)

Compilare: user.cpp: In function ‘int main()’: user.cpp:10:9: warning: unused variable ‘c’ [-Wunused-variable] user.cpp:10:12: warning: unused variable ‘k’ [-Wunused-variable] user.cpp:8:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:9:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:11:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]