Compilare: user.cpp: In function ‘void adauga(ceva, int)’: user.cpp:55:7: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(sol[x.nod]==0) //aici verific in loc de vector de viz ^ user.cpp: In function ‘int main()’: user.cpp:98:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[1].size();++i) ^ user.cpp:113:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[tmp1].size();++i) ^ user.cpp:88:30: warning: variable ‘cn’ set but not used [-Wunused-but-set-variable] short int tmp1,tmp2,tmp3,cn; ^ user.cpp:85:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("apm.in","r",stdin); ^ user.cpp:86:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("apm.out","w",stdout); ^ user.cpp:90:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%hd %hd",&n,&m); ^ user.cpp:93:47: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%hd %hd %hd",&tmp1,&tmp2,&tmp3); ^