Borderou de evaluare (job #53645)

Compilare: user.cpp: In function ‘int main()’: user.cpp:14:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:15:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:18:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:22:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:51:27: warning: ‘y’ may be used uninitialized in this function [-Wuninitialized] user.cpp:51:27: warning: ‘x’ may be used uninitialized in this function [-Wuninitialized] user.cpp:49:37: warning: ‘nr’ may be used uninitialized in this function [-Wuninitialized] user.cpp:44:9: warning: ‘j’ may be used uninitialized in this function [-Wuninitialized]