Compilare: user.cpp: In function ‘void bfs(int)’: user.cpp:28:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[coada[poz]].size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:43:24: warning: format ‘%c’ expects argument of type ‘char*’, but argument 4 has type ‘int*’ [-Wformat=] scanf("%d%d%c",&n,&m,&c); ^ user.cpp:48:22: warning: format ‘%c’ expects argument of type ‘char*’, but argument 2 has type ‘int*’ [-Wformat=] scanf("%c",&c); ^ user.cpp:51:18: warning: format ‘%c’ expects argument of type ‘char*’, but argument 2 has type ‘int*’ [-Wformat=] scanf("%c",&c); ^ user.cpp:41:29: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pixy.in","r",stdin); ^ user.cpp:42:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pixy.out","w",stdout); ^ user.cpp:43:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%c",&n,&m,&c); ^ user.cpp:48:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c",&c); ^ user.cpp:51:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c",&c); ^