Borderou de evaluare (job #49553)

Compilare: user.cpp: In function ‘int main()’: user.cpp:5:31: warning: variable ‘j’ set but not used [-Wunused-but-set-variable] user.cpp:5:33: warning: variable ‘ccn’ set but not used [-Wunused-but-set-variable] user.cpp:5:54: warning: variable ‘o’ set but not used [-Wunused-but-set-variable] user.cpp:5:56: warning: variable ‘m’ set but not used [-Wunused-but-set-variable] user.cpp:6:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:7:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:8:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:39:15: warning: ‘c’ may be used uninitialized in this function [-Wuninitialized]