Borderou de evaluare (job #396430)

Compilare: user.cpp: In function ‘int main()’: user.cpp:9:17: warning: variable ‘div_k’ set but not used [-Wunused-but-set-variable] user.cpp:9:23: warning: variable ‘div_k_minus_1’ set but not used [-Wunused-but-set-variable] user.cpp:7:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:8:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:23:22: warning: ‘nr’ may be used uninitialized in this function [-Wuninitialized]