Compilare: user.cpp:428:32: warning: ‘typedef’ was ignored in this declaration [enabled by default] typedef struct LM{int nod,cost;}; ^ user.cpp:436:2: warning: ‘typedef’ was ignored in this declaration [enabled by default] }; ^ user.cpp: In function ‘int b_ford()’: user.cpp:459:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<G[cc2.nod].size();i++) ^ user.cpp:444:18: warning: unused variable ‘nod’ [-Wunused-variable] int i,d[N+2],nod,j; ^ user.cpp:444:22: warning: unused variable ‘j’ [-Wunused-variable] int i,d[N+2],nod,j; ^ user.cpp: In function ‘void read()’: user.cpp:402:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cc.in","r",stdin); ^ user.cpp:403:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:407:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&x); ^ user.cpp: In function ‘int main()’: user.cpp:515:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cc.out","w",stdout); ^