Borderou de evaluare (job #70134)

Compilare: user.cpp: In function 'int main()': user.cpp:4:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:5:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:10:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:24:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:34:24: warning: 'c1' may be used uninitialized in this function [-Wuninitialized] user.cpp:34:24: warning: 'b1' may be used uninitialized in this function [-Wuninitialized]