Borderou de evaluare (job #298786)

Compilare: user.cpp: In function 'int main()': user.cpp:9:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:10:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:24:8: warning: 'cfn' may be used uninitialized in this function [-Wuninitialized] user.cpp:19:9: warning: 'cfm' may be used uninitialized in this function [-Wuninitialized]