Borderou de evaluare (job #49010)

Compilare: user.cpp: In function ‘int main()’: user.cpp:10:11: warning: unused variable ‘m’ [-Wunused-variable] user.cpp:10:13: warning: unused variable ‘n’ [-Wunused-variable] user.cpp:10:15: warning: unused variable ‘s’ [-Wunused-variable] user.cpp:10:17: warning: unused variable ‘t’ [-Wunused-variable] user.cpp:10:27: warning: variable ‘c’ set but not used [-Wunused-but-set-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:55:19: warning: ‘c2’ may be used uninitialized in this function [-Wuninitialized]