Borderou de evaluare (job #530180)

Compilare: user.cpp: In function ‘int main()’: user.cpp:7:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:8:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:44:11: warning: ‘nra’ may be used uninitialized in this function [-Wuninitialized] user.cpp:44:29: warning: ‘nrb’ may be used uninitialized in this function [-Wuninitialized] user.cpp:44:21: warning: ‘a’ may be used uninitialized in this function [-Wuninitialized] user.cpp:44:40: warning: ‘b’ may be used uninitialized in this function [-Wuninitialized]