Compilare: user.cpp: In function ‘int main()’: user.cpp:57:18: warning: unused variable ‘nod’ [-Wunused-variable] int i,cate=0,nod,n1,n2; ^ user.cpp: In function ‘void citire()’: user.cpp:11:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:13:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^ user.cpp: In function ‘int main()’: user.cpp:58:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("domino.in","r",stdin); ^ user.cpp:59:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("domino.out","w",stdout); ^ user.cpp:67:17: warning: ‘n2’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(n2==0) ^ user.cpp:64:13: warning: ‘n1’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(n1==0) ^