Compilare: user.cpp: In function ‘void BFS(int)’: user.cpp:17:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<lista[coada[ic]].size();i++){ ^ user.cpp: In function ‘int main()’: user.cpp:43:5: warning: unused variable ‘ic’ [-Wunused-variable] int ic=1,sf=0; ^ user.cpp:31:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("berarii2.in","r",stdin); ^ user.cpp:32:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("berarii2.out","w",stdout); ^ user.cpp:36:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d%d",&n,&m,&p); ^ user.cpp:39:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d %d",&x,&y); ^ user.cpp:46:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&berarie); ^