Borderou de evaluare (job #264898)

Compilare: user.cpp: In function ‘bool BFS(int, int)’: user.cpp:50:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘void dfs(int)’: user.cpp:68:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘void write()’: user.cpp:101:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘void read()’: user.cpp:27:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:31:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]