Borderou de evaluare (job #329101)

Compilare: user.cpp: In function ‘void BFS(int)’: user.cpp:28:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:15:11: warning: unused variable ‘cnode’ [-Wunused-variable] user.cpp: In function ‘void BFS2(int, int)’: user.cpp:51:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘int main()’: user.cpp:98:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:100:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:67:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:68:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:72:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:78:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]