Borderou de evaluare (job #219180)

Compilare: user.cpp: In function ‘int main()’: user.cpp:5:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:6:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:54:9: warning: ‘w2’ may be used uninitialized in this function [-Wuninitialized] user.cpp:54:9: warning: ‘w’ may be used uninitialized in this function [-Wuninitialized] user.cpp:62:9: warning: ‘v’ may be used uninitialized in this function [-Wuninitialized] user.cpp:47:17: warning: ‘v2’ may be used uninitialized in this function [-Wuninitialized]