Compilare: user.cpp: In function ‘bool Check()’: user.cpp:27:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<list[node].size();i++,it++){ ^ user.cpp:32:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<nodes.size();i++){ ^ user.cpp:33:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=i+1;j<nodes.size();j++){ ^ user.cpp: In function ‘void Try(long int)’: user.cpp:41:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pas==list[node].size()){ ^ user.cpp: In function ‘int main()’: user.cpp:99:41: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 2 has type ‘int’ [-Wformat=] if(ans[4]) printf("%ld %ld",4,ans[4]); else ^ user.cpp:100:41: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 2 has type ‘int’ [-Wformat=] if(ans[3]) printf("%ld %ld",3,ans[3]); else ^ user.cpp:101:41: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 2 has type ‘int’ [-Wformat=] printf("%ld %ld",2,ans[2]); ^ user.cpp:57:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("count.in","r",stdin); ^ user.cpp:58:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("count.out","w",stdout); ^ user.cpp:60:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld %ld",&n,&m); ^ user.cpp:62:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld %ld",&x,&y); ^