Compilare: user.cpp: In function ‘void Print()’: user.cpp:40:33: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%d",stk.back()%2); ^ user.cpp: In function ‘void backtracking()’: user.cpp:50:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(stk.size()!=(1<<N)){ ///cat timp o solutie nu a fost gasita(in orice astfel de graf exista o solutie) ^ user.cpp: In function ‘int main()’: user.cpp:84:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("biti.in","r",stdin); ^ user.cpp:85:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("biti.out","w",stdout); ^ user.cpp:86:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&N); ^